CVE-2025-36244 - OpenCVE

IBM AIX 7.2, 7.3, IBM VIOS 3.1, and 4.1, when configured to use Kerberos network authentication, could allow a local user to write to files on the system with root privileges due to improper initialization of critical variables.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Ibm	Aix Vios

No data.

No data.

References

Link	Providers
https://www.ibm.com/support/pages/node/7245092

History

Wed, 17 Sep 2025 11:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Ibm Ibm aix Ibm vios
Vendors & Products		Ibm Ibm aix Ibm vios

Tue, 16 Sep 2025 17:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Tue, 16 Sep 2025 15:00:00 +0000

Type	Values Removed	Values Added
Description		IBM AIX 7.2, 7.3, IBM VIOS 3.1, and 4.1, when configured to use Kerberos network authentication, could allow a local user to write to files on the system with root privileges due to improper initialization of critical variables.
Title		IBM AIX privilege escalation
Weaknesses		CWE-454
References		https://www.ibm.com/support/pages/node/7245092
Metrics		cvssV3_1 `{'score': 7.4, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}`

MITRE

Status: PUBLISHED

Assigner: ibm

Published: 2025-09-16T14:38:08.632Z

Updated: 2025-09-17T03:55:48.492Z

Reserved: 2025-04-15T21:16:43.930Z

Link: CVE-2025-36244

Vulnrichment

Updated: 2025-09-16T16:16:13.029Z

NVD

Status : Awaiting Analysis

Published: 2025-09-16T15:15:44.130

Modified: 2025-09-17T14:18:55.093

Link: CVE-2025-36244

Redhat

No data.

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The AIX and VIOS fixes can be downloaded via https from:</p><p><a target=\"_blank\" rel=\"nofollow\" href=\"https://aix.software.ibm.com/aix/efixes/security/kerberos_fix.tar\">https://aix.software.ibm.com/aix/efixes/security/kerberos_fix.tar</a> </p><p> </p><p>The link above is to a tar file containing this signed advisory, fix packages, and OpenSSL signatures for each package. The fixes below include prerequisite checking. This will enforce the correct mapping between the fixes and AIX Technology Levels.</p><p> </p><p>You must be on the 'prereq for installation' level before applying the interim fix. This may require installing a new level(prereq version) first from:</p><p><a target=\"_blank\" rel=\"nofollow\" href=\"https://www.ibm.com/resources/mrs/assets?source=aixbp\">https://www.ibm.com/resources/mrs/assets?source=aixbp</a></p><p> </p><div><table><tbody><tr><td>AIX Level</td><td>Interim Fix</td><td>Fileset Name (prereq for installation)</td></tr><tr><td>7.2, 7.3</td><td>IJ55344s9a.250722.epkg.Z</td><td>krb5.client.rte (1.16.1.7)</td></tr></tbody></table></div><p> </p><div><table><tbody><tr><td>VIOS Level</td><td>Interim Fix</td><td>Fileset Name (prereq for installation)</td></tr><tr><td>3.1, 4.1</td><td>IJ55344s9a.250722.epkg.Z</td><td>krb5.client.rte (1.16.1.7)</td></tr></tbody></table></div><p> </p><p>To extract the fixes from the tar file:</p><p> </p><p>tar xvf kerberos_fix.tar</p><p>cd kerberos_fix</p><p> </p><p>Verify you have retrieved the fixes intact:</p><p>The checksums below were generated using the \"openssl dgst -sha256 [filename]\" command as the following:</p><p> </p><div><table><tbody><tr><td>openssl dgst -sha256</td><td>filename</td></tr><tr><td>7e771a31c6f02b5635d99e3444c6085c1c67fd744ed00eade1d042134df6bb54</td><td>IJ55344s9a.250722.epkg.Z</td></tr></tbody></table></div><p> </p><p>These sums should match exactly. The OpenSSL signatures in the tar file and on this advisory can also be used to verify the integrity of the fixes. If the sums or signatures cannot be confirmed, contact IBM Support at <a target=\"_blank\" rel=\"nofollow\" href=\"http://ibm.com/support/\">http://ibm.com/support/</a> and describe the discrepancy.        </p><p> </p><p>openssl dgst -sha256 -verify [pubkey_file] -signature [advisory_file].sig [advisory_file]</p><p>openssl dgst -sha256 -verify [pubkey_file] -signature [ifix_file].sig [ifix_file]</p><p> </p><p>Published advisory OpenSSL signature file location:</p><p><a target=\"_blank\" rel=\"nofollow\" href=\"https://aix.software.ibm.com/aix/efixes/security/kerberos_advisory.asc.sig\">https://aix.software.ibm.com/aix/efixes/security/kerberos_advisory.asc.sig</a></p>\n\n<br>"}], "value": "IBM strongly recommends addressing the vulnerability now.\n\n\u00a0\n\nAIX and VIOS fixes are available. The AIX and VIOS fixes can be downloaded via https from:\n\n https://aix.software.ibm.com/aix/efixes/security/kerberos_fix.tar \u00a0\n\n\u00a0\n\nThe link above is to a tar file containing this signed advisory, fix packages, and OpenSSL signatures for each package. The fixes below include prerequisite checking. This will enforce the correct mapping between the fixes and AIX Technology Levels.\n\n\u00a0\n\nYou must be on the 'prereq for installation' level before applying the interim fix. This may require installing a new level(prereq version) first from:\n\n https://www.ibm.com/resources/mrs/assets?source=aixbp \n\n\u00a0\n\nAIX LevelInterim FixFileset Name (prereq for installation)7.2, 7.3IJ55344s9a.250722.epkg.Zkrb5.client.rte (1.16.1.7)\n\n\u00a0\n\nVIOS LevelInterim FixFileset Name (prereq for installation)3.1, 4.1IJ55344s9a.250722.epkg.Zkrb5.client.rte (1.16.1.7)\n\n\u00a0\n\nTo extract the fixes from the tar file:\n\n\u00a0\n\ntar xvf kerberos_fix.tar\n\ncd kerberos_fix\n\n\u00a0\n\nVerify you have retrieved the fixes intact:\n\nThe checksums below were generated using the \"openssl dgst -sha256 [filename]\" command as the following:\n\n\u00a0\n\nopenssl dgst -sha256filename7e771a31c6f02b5635d99e3444c6085c1c67fd744ed00eade1d042134df6bb54IJ55344s9a.250722.epkg.Z\n\n\u00a0\n\nThese sums should match exactly. The OpenSSL signatures in the tar file and on this advisory can also be used to verify the integrity of the fixes. If the sums or signatures cannot be confirmed, contact IBM Support at http://ibm.com/support/ \u00a0and describe the discrepancy. \u00a0 \u00a0 \u00a0 \u00a0\n\n\u00a0\n\nopenssl dgst -sha256 -verify [pubkey_file] -signature [advisory_file].sig [advisory_file]\n\nopenssl dgst -sha256 -verify [pubkey_file] -signature [ifix_file].sig [ifix_file]\n\n\u00a0\n\nPublished advisory OpenSSL signature file location:\n\n https://aix.software.ibm.com/aix/efixes/security/kerberos_advisory.asc.sig"}], "source": {"discovery": "UNKNOWN"}, "title": "IBM AIX privilege escalation", "workarounds": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>If possible, it is recommended that a mksysb backup of the system be created. Verify it is both bootable and readable before proceeding.</p><p> </p><p>To preview a fix installation:</p><p>installp -a -d fix_name -p all # where fix_name is the name of the</p><p>                                            # fix package being previewed.</p><p> </p><p>To install a fix package:</p><p>installp -a -d fix_name -X all # where fix_name is the name of the</p><p>                                            # fix package being installed.</p><p> </p><p>Interim fixes have had limited functional and regression testing but not the full regression testing that takes place for Service Packs; however, IBM does fully support them.</p><p> </p><p>Interim fix management documentation can be found at:</p><p><a target=\"_blank\" rel=\"nofollow\" href=\"https://www.ibm.com/support/pages/managing-interim-fixes-aix\">https://www.ibm.com/support/pages/managing-interim-fixes-aix</a></p><p> </p><p>To preview an interim fix installation:</p><p>emgr -e ipkg_name -p         # where ipkg_name is the name of the</p><p>                                        # interim fix package being previewed.</p><p> </p><p>To install an interim fix package:</p><p>emgr -e ipkg_name -X         # where ipkg_name is the name of the</p><p>                                        # interim fix package being installed.</p>\n\n<br>"}], "value": "If possible, it is recommended that a mksysb backup of the system be created. Verify it is both bootable and readable before proceeding.\n\n\u00a0\n\nTo preview a fix installation:\n\ninstallp -a -d fix_name -p all # where fix_name is the name of the\n\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # fix package being previewed.\n\n\u00a0\n\nTo install a fix package:\n\ninstallp -a -d fix_name -X all # where fix_name is the name of the\n\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # fix package being installed.\n\n\u00a0\n\nInterim fixes have had limited functional and regression testing but not the full regression testing that takes place for Service Packs; however, IBM does fully support them.\n\n\u00a0\n\nInterim fix management documentation can be found at:\n\n https://www.ibm.com/support/pages/managing-interim-fixes-aix \n\n\u00a0\n\nTo preview an interim fix installation:\n\nemgr -e ipkg_name -p \u00a0 \u00a0 \u00a0 \u00a0 # where ipkg_name is the name of the\n\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # interim fix package being previewed.\n\n\u00a0\n\nTo install an interim fix package:\n\nemgr -e ipkg_name -X \u00a0 \u00a0 \u00a0 \u00a0 # where ipkg_name is the name of the\n\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # interim fix package being installed."}], "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-09-16T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2025-36244"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-09-17T03:55:48.492Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-36244", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-09-16T16:16:08.415187Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-09-16T16:16:13.029Z"}}], "cna": {"title": "IBM AIX privilege escalation", "source": {"discovery": "UNKNOWN"}, "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.4, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "IBM", "product": "AIX", "versions": [{"status": "affected", "version": "7.2"}, {"status": "affected", "version": "7.3"}], "defaultStatus": "unaffected"}, {"vendor": "IBM", "product": "VIOS", "versions": [{"status": "affected", "version": "3.1"}, {"status": "affected", "version": "4.1"}], "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "IBM strongly recommends addressing the vulnerability now.\n\n\u00a0\n\nAIX and VIOS fixes are available. The AIX and VIOS fixes can be downloaded via https from:\n\n https://aix.software.ibm.com/aix/efixes/security/kerberos_fix.tar \u00a0\n\n\u00a0\n\nThe link above is to a tar file containing this signed advisory, fix packages, and OpenSSL signatures for each package. The fixes below include prerequisite checking. This will enforce the correct mapping between the fixes and AIX Technology Levels.\n\n\u00a0\n\nYou must be on the 'prereq for installation' level before applying the interim fix. This may require installing a new level(prereq version) first from:\n\n https://www.ibm.com/resources/mrs/assets?source=aixbp \n\n\u00a0\n\nAIX LevelInterim FixFileset Name (prereq for installation)7.2, 7.3IJ55344s9a.250722.epkg.Zkrb5.client.rte (1.16.1.7)\n\n\u00a0\n\nVIOS LevelInterim FixFileset Name (prereq for installation)3.1, 4.1IJ55344s9a.250722.epkg.Zkrb5.client.rte (1.16.1.7)\n\n\u00a0\n\nTo extract the fixes from the tar file:\n\n\u00a0\n\ntar xvf kerberos_fix.tar\n\ncd kerberos_fix\n\n\u00a0\n\nVerify you have retrieved the fixes intact:\n\nThe checksums below were generated using the \"openssl dgst -sha256 [filename]\" command as the following:\n\n\u00a0\n\nopenssl dgst -sha256filename7e771a31c6f02b5635d99e3444c6085c1c67fd744ed00eade1d042134df6bb54IJ55344s9a.250722.epkg.Z\n\n\u00a0\n\nThese sums should match exactly. The OpenSSL signatures in the tar file and on this advisory can also be used to verify the integrity of the fixes. If the sums or signatures cannot be confirmed, contact IBM Support at http://ibm.com/support/ \u00a0and describe the discrepancy. \u00a0 \u00a0 \u00a0 \u00a0\n\n\u00a0\n\nopenssl dgst -sha256 -verify [pubkey_file] -signature [advisory_file].sig [advisory_file]\n\nopenssl dgst -sha256 -verify [pubkey_file] -signature [ifix_file].sig [ifix_file]\n\n\u00a0\n\nPublished advisory OpenSSL signature file location:\n\n https://aix.software.ibm.com/aix/efixes/security/kerberos_advisory.asc.sig", "supportingMedia": [{"type": "text/html", "value": "<p>IBM strongly recommends addressing the vulnerability now.</p><p> </p><p>AIX and VIOS fixes are available. The AIX and VIOS fixes can be downloaded via https from:</p><p><a target=\"_blank\" rel=\"nofollow\" href=\"https://aix.software.ibm.com/aix/efixes/security/kerberos_fix.tar\">https://aix.software.ibm.com/aix/efixes/security/kerberos_fix.tar</a> </p><p> </p><p>The link above is to a tar file containing this signed advisory, fix packages, and OpenSSL signatures for each package. The fixes below include prerequisite checking. This will enforce the correct mapping between the fixes and AIX Technology Levels.</p><p> </p><p>You must be on the 'prereq for installation' level before applying the interim fix. This may require installing a new level(prereq version) first from:</p><p><a target=\"_blank\" rel=\"nofollow\" href=\"https://www.ibm.com/resources/mrs/assets?source=aixbp\">https://www.ibm.com/resources/mrs/assets?source=aixbp</a></p><p> </p><div><table><tbody><tr><td>AIX Level</td><td>Interim Fix</td><td>Fileset Name (prereq for installation)</td></tr><tr><td>7.2, 7.3</td><td>IJ55344s9a.250722.epkg.Z</td><td>krb5.client.rte (1.16.1.7)</td></tr></tbody></table></div><p> </p><div><table><tbody><tr><td>VIOS Level</td><td>Interim Fix</td><td>Fileset Name (prereq for installation)</td></tr><tr><td>3.1, 4.1</td><td>IJ55344s9a.250722.epkg.Z</td><td>krb5.client.rte (1.16.1.7)</td></tr></tbody></table></div><p> </p><p>To extract the fixes from the tar file:</p><p> </p><p>tar xvf kerberos_fix.tar</p><p>cd kerberos_fix</p><p> </p><p>Verify you have retrieved the fixes intact:</p><p>The checksums below were generated using the \"openssl dgst -sha256 [filename]\" command as the following:</p><p> </p><div><table><tbody><tr><td>openssl dgst -sha256</td><td>filename</td></tr><tr><td>7e771a31c6f02b5635d99e3444c6085c1c67fd744ed00eade1d042134df6bb54</td><td>IJ55344s9a.250722.epkg.Z</td></tr></tbody></table></div><p> </p><p>These sums should match exactly. The OpenSSL signatures in the tar file and on this advisory can also be used to verify the integrity of the fixes. If the sums or signatures cannot be confirmed, contact IBM Support at <a target=\"_blank\" rel=\"nofollow\" href=\"http://ibm.com/support/\">http://ibm.com/support/</a> and describe the discrepancy.        </p><p> </p><p>openssl dgst -sha256 -verify [pubkey_file] -signature [advisory_file].sig [advisory_file]</p><p>openssl dgst -sha256 -verify [pubkey_file] -signature [ifix_file].sig [ifix_file]</p><p> </p><p>Published advisory OpenSSL signature file location:</p><p><a target=\"_blank\" rel=\"nofollow\" href=\"https://aix.software.ibm.com/aix/efixes/security/kerberos_advisory.asc.sig\">https://aix.software.ibm.com/aix/efixes/security/kerberos_advisory.asc.sig</a></p>\n\n<br>", "base64": false}]}], "references": [{"url": "https://www.ibm.com/support/pages/node/7245092", "tags": ["vendor-advisory", "patch"]}], "workarounds": [{"lang": "en", "value": "If possible, it is recommended that a mksysb backup of the system be created. Verify it is both bootable and readable before proceeding.\n\n\u00a0\n\nTo preview a fix installation:\n\ninstallp -a -d fix_name -p all # where fix_name is the name of the\n\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # fix package being previewed.\n\n\u00a0\n\nTo install a fix package:\n\ninstallp -a -d fix_name -X all # where fix_name is the name of the\n\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # fix package being installed.\n\n\u00a0\n\nInterim fixes have had limited functional and regression testing but not the full regression testing that takes place for Service Packs; however, IBM does fully support them.\n\n\u00a0\n\nInterim fix management documentation can be found at:\n\n https://www.ibm.com/support/pages/managing-interim-fixes-aix \n\n\u00a0\n\nTo preview an interim fix installation:\n\nemgr -e ipkg_name -p \u00a0 \u00a0 \u00a0 \u00a0 # where ipkg_name is the name of the\n\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # interim fix package being previewed.\n\n\u00a0\n\nTo install an interim fix package:\n\nemgr -e ipkg_name -X \u00a0 \u00a0 \u00a0 \u00a0 # where ipkg_name is the name of the\n\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # interim fix package being installed.", "supportingMedia": [{"type": "text/html", "value": "<p>If possible, it is recommended that a mksysb backup of the system be created. Verify it is both bootable and readable before proceeding.</p><p> </p><p>To preview a fix installation:</p><p>installp -a -d fix_name -p all # where fix_name is the name of the</p><p>                                            # fix package being previewed.</p><p> </p><p>To install a fix package:</p><p>installp -a -d fix_name -X all # where fix_name is the name of the</p><p>                                            # fix package being installed.</p><p> </p><p>Interim fixes have had limited functional and regression testing but not the full regression testing that takes place for Service Packs; however, IBM does fully support them.</p><p> </p><p>Interim fix management documentation can be found at:</p><p><a target=\"_blank\" rel=\"nofollow\" href=\"https://www.ibm.com/support/pages/managing-interim-fixes-aix\">https://www.ibm.com/support/pages/managing-interim-fixes-aix</a></p><p> </p><p>To preview an interim fix installation:</p><p>emgr -e ipkg_name -p         # where ipkg_name is the name of the</p><p>                                        # interim fix package being previewed.</p><p> </p><p>To install an interim fix package:</p><p>emgr -e ipkg_name -X         # where ipkg_name is the name of the</p><p>                                        # interim fix package being installed.</p>\n\n<br>", "base64": false}]}], "x_generator": {"engine": "Vulnogram 0.2.0"}, "descriptions": [{"lang": "en", "value": "IBM AIX 7.2, 7.3, IBM VIOS 3.1, and 4.1, when configured to use Kerberos network authentication, could allow a local user to write to files on the system with root privileges due to improper initialization of critical variables.", "supportingMedia": [{"type": "text/html", "value": "IBM AIX 7.2, 7.3, IBM VIOS 3.1, and 4.1, when configured to use Kerberos network authentication, could allow a local user to write to files on the system with root privileges due to improper initialization of critical variables.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-454", "description": "CWE-454 External Initialization of Trusted Variables or Data Stores"}]}], "providerMetadata": {"orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "shortName": "ibm", "dateUpdated": "2025-09-16T14:38:08.632Z"}}}, "cveMetadata": {"cveId": "CVE-2025-36244", "state": "PUBLISHED", "dateUpdated": "2025-09-17T03:55:48.492Z", "dateReserved": "2025-04-15T21:16:43.930Z", "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522", "datePublished": "2025-09-16T14:38:08.632Z", "assignerShortName": "ibm"}, "dataVersion": "5.1"}