SGI IRIX fsr_efs symlink
| irix-fsr-efs-symlink (10275) |  Medium Risk |
Description:
SGI IRIX is vulnerable to a symlink attack in the fsr_efs binary, which is installed by default as part of the "eoe.sw.base" package. A local attacker could create a symbolic link from the /var/tmp/.fsrlast file to any file on the system, which would be overwritten once fsr_efs is executed. An attacker could use this vulnerability to corrupt critical system files and possibly cause a denial of service or gain elevated privileges on the system.
Consequences:
File Manipulation
Remedy:
Upgrade to the latest version of IRIX (6.5.18 or later), as listed in SGI Security Advisory 20021103-02-P. See References.
— OR —
Apply the appropriate patch for your system, as listed in SGI Security Advisory 20021103-02-P. See References.
References:
- CIAC Information Bulletin N-004: SGI rpcbind User-level Vulnerabilities.
- SGI Security Advisory 20021103-02-P: Updated patches for SGI Advisories 20020903-02-P and 20021103-01-P.
- BID-5897: IRIX fsr_efs Symlink Vulnerability
- CVE-2002-1517: fsr_efs in IRIX 6.5 allows local users to conduct unauthorized file activities via a symlink attack, possibly via the .fsrlast file.
- OSVDB ID: 8579: IRIX fsr_efs Symlink Unauthorized File Access
Platforms Affected:
- SGI IRIX 6.5
- SGI IRIX 6.5 20
- SGI IRIX 6.5.1
- SGI IRIX 6.5.10
- SGI IRIX 6.5.10f
- SGI IRIX 6.5.10m
- SGI IRIX 6.5.11
- SGI IRIX 6.5.11f
- SGI IRIX 6.5.11m
- SGI IRIX 6.5.12
- SGI IRIX 6.5.12f
- SGI IRIX 6.5.12m
- SGI IRIX 6.5.13
- SGI IRIX 6.5.13f
- SGI IRIX 6.5.13m
- SGI IRIX 6.5.14
- SGI IRIX 6.5.14f
- SGI IRIX 6.5.14m
- SGI IRIX 6.5.15
- SGI IRIX 6.5.15f
- SGI IRIX 6.5.15m
- SGI IRIX 6.5.16
- SGI IRIX 6.5.16f
- SGI IRIX 6.5.16m
- SGI IRIX 6.5.17
- SGI IRIX 6.5.17f
- SGI IRIX 6.5.17m
- SGI IRIX 6.5.18
- SGI IRIX 6.5.18f
- SGI IRIX 6.5.18m
- SGI IRIX 6.5.19
- SGI IRIX 6.5.19f
- SGI IRIX 6.5.19m
- SGI IRIX 6.5.2
- SGI IRIX 6.5.20
- SGI IRIX 6.5.20f
- SGI IRIX 6.5.20m
- SGI IRIX 6.5.21
- SGI IRIX 6.5.21f
- SGI IRIX 6.5.21m
- SGI IRIX 6.5.22
- SGI IRIX 6.5.22m
- SGI IRIX 6.5.23
- SGI IRIX 6.5.23m
- SGI IRIX 6.5.24
- SGI IRIX 6.5.24m
- SGI IRIX 6.5.25
- SGI IRIX 6.5.26
- SGI IRIX 6.5.27
- SGI IRIX 6.5.28
- SGI IRIX 6.5.2f
- SGI IRIX 6.5.2m
- SGI IRIX 6.5.3
- SGI IRIX 6.5.3f
- SGI IRIX 6.5.3m
- SGI IRIX 6.5.4
- SGI IRIX 6.5.4f
- SGI IRIX 6.5.4m
- SGI IRIX 6.5.5
- SGI IRIX 6.5.5f
- SGI IRIX 6.5.5m
- SGI IRIX 6.5.6
- SGI IRIX 6.5.6f
- SGI IRIX 6.5.6m
- SGI IRIX 6.5.7
- SGI IRIX 6.5.7f
- SGI IRIX 6.5.7m
- SGI IRIX 6.5.8
- SGI IRIX 6.5.8f
- SGI IRIX 6.5.8m
- SGI IRIX 6.5.9
- SGI IRIX 6.5.9f
- SGI IRIX 6.5.9m
Reported:
Oct 03, 2002
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