SGI IRIX bypass access checks
| irix-bypass-access-checks (13544) |  High Risk |
Description:
SGI IRIX could allow a remote attacker to bypass access checks, caused by a vulnerability in the NFS server. In /etc/exports, if any of the 'root', 'rw', or 'ro' access options contains only wildcard characters, a remote attacker could bypass access checks under certain circumstances.
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of IRIX (6.5.22 or later), as listed in SGI Security Advisory 20031004-01-P. See References.
— OR—
Apply the appropriate patch for your system, as listed in SGI Security Advisory 20031004-01-P. See References.
References:
- BugTraq Mailing List, Tue Oct 28 2003 - 15:59:28 CST : Wildcard exportfs issue in NFS on IRIX.
- CIAC Information Bulletin O-014: SGI Wildcard Exportfs Issue in Network File System (NFS).
- SGI Security Advisory 20031004-01-P: Wildcard exportfs issue in NFS.
- BID-8921: SGI IRIX NFS Exportfs Wildcard Entry Unauthorized Access Vulnerability
- CVE-2003-0683: NFS in SGI 6.5.21m and 6.5.21f does not perform access checks in certain configurations when an /etc/exports entry uses wildcards without any hostnames or groups, which could allow attackers to bypass intended restrictions.
- OSVDB ID: 2734: IRIX NFS Wildcard exportfs Access Check Bypass
- SA10095: SGI IRIX NFS Unauthorised Resource Access Vulnerability
Platforms Affected:
- SGI IRIX 6.5.21f
- SGI IRIX 6.5.21m
Reported:
Oct 28, 2003
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