IBM AIX sadc and timex symlink attack
| aix-sadc-timex (7675) |  Medium Risk |
Description:
Sadc in AIX is setgid adm, allowing local attackers to create and modify files owned by the adm group. An attacker can use a program such as timex to supply sadc with a file name and trick sadc into modifying files.
Consequences:
File Manipulation
Remedy:
For IBM AIX 4.1:
Apply IX76330 patch, available from the IBM AIX APAR IX76330 document. See References.
For IBM AIX 4.2:
Apply IX76853 patch, available from the IBM AIX APAR IX76853 document. See References.
For IBM AIX 4.3:
Apply IX75554 patch, available from the IBM AIX APAR IX75554 APAR Notes. See References.
References:
- IBM AIX APAR IX75554 APAR Notes: IX75554 - (AIXV43 only) SECURITY: timex creates insecure temporary file.
- IBM AIX APAR IX75554 APAR Notes: (AIXV43 only) SECURITY: timex creates insecure temporary file.
- IBM AIX APAR IX76330 APAR Notes: IX76330 - (AIXV41 only) timex creates insecure temporary files.
- IBM AIX APAR IX76853 APAR Notes: IX76853 - (AIXV42 only) timex creates insecure temporary files.
- BID-408: AIX sadc Insecure Temporary File Creation Vulnerability
- CVE-1999-1486: sadc in IBM AIX 4.1 through 4.3, when called from programs such as timex that are setgid adm, allows local users to overwrite arbitrary files via a symlink attack.
Platforms Affected:
- IBM AIX 4.1
- IBM AIX 4.2
- IBM AIX 4.3
Reported:
Not available
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