Microsoft IIS relative path usage in system file process table could allow elevated privileges
| iis-relative-path-privilege-elevation (6985) |  High Risk |
Description:
Microsoft Internet Information Server (IIS) could allow an attacker to load files onto the Web server. This occurs because IIS keeps a list of executable files that run as part of the IIS process, which can be specified using both absolute and relative paths. An attacker can load a malicious file with the same name as one of the process list files to any directory on the Web server and execute it to gain system level privileges.
Consequences:
Gain Privileges
Remedy:
Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS02-001. See References.
Note: Microsoft originally provided a patch for this vulnerability in MS01-044, but it was superseded by the patch released with MS02-001.
For IIS:
Microsoft originally provided a patch for this vulnerability in MS01-044, but it has been superseded by the patch released with MS02-018 and MS06-062, and then superseded by the patch released with MS03-018. See References.
For Windows NT:
Microsoft originally provided a patch for this vulnerability in MS02-001, but it has been superseded with the patch released with MS02-018. See References.
References:
- CIAC Information Bulletin L-132: Microsoft Cumulative Patch for IIS.
- Entercept Security Alert 08-15-01: Privilege Escalation Vulnerability in Microsoft IIS.
- Microsoft Security Bulletin MS01-044: 15 August 2001 Cumulative Patch for IIS.
- Microsoft Security Bulletin MS02-001: Trusting Domains Do Not Verify Domain Membership of SIDs in Authorization Data.
- Microsoft Security Bulletin MS02-018: Cumulative Patch for Internet Information Services (Q319733).
- Microsoft Security Bulletin MS02-062: Cumulative Patch for Internet Information Service (Q327696).
- Microsoft Security Bulletin MS03-018: Cumulative Patch for Internet Information Service (811114).
- BID-3193: Microsoft IIS 5.0 In-Process Table Privelege Elevation Vulnerability
- CVE-2001-0507: IIS 5.0 uses relative paths to find system files that will run in-process, which allows local users to gain privileges via a Trojan horse file, aka the System file listing privilege elevation vulnerability.
Platforms Affected:
- Microsoft Internet Information Server 5.0
Reported:
Aug 15, 2001
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