A vulnerability classified as problematic has been found in SGI IRIX (Operating System). This affects the function fsr_efs of the file .fsrlast. The manipulation with an unknown input leads to a symlink vulnerability. CWE is classifying the issue as CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

fsr_efs in IRIX 6.5 allows local users to conduct unauthorized file activities via a symlink attack, possibly via the .fsrlast file.

The issue has been introduced in 06/01/1998. The weakness was published 10/03/2002 (Website). It is possible to read the advisory at patches.sgi.com. This vulnerability is uniquely identified as CVE-2002-1517. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details and a exploit are known.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1585 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at X-Force (10275). Similar entry is available at 20296.

Productinfo

Type

• Operating System

Vendor

• SGI

Name

• IRIX

Version

• 6.5
• 6.5.1
• 6.5.2
• 6.5.3
• 6.5.4
• 6.5.5
• 6.5.6
• 6.5.7
• 6.5.8
• 6.5.9
• 6.5.10
• 6.5.11
• 6.5.12
• 6.5.13
• 6.5.13m
• 6.5.14
• 6.5.14m
• 6.5.15
• 6.5.15m
• 6.5.16
• 6.5.16m
• 6.5.17
• 6.5.17m

License

• commercial

Support

• end of life

CPE 2.3info

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CPE 2.2info

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