Microsoft IIS out-of-process applications could be used to gain elevated privileges
| iis-outofprocess-privilege-elevation (10502) |  Medium Risk |
Description:
Microsoft Internet Information Services (IIS) could allow a remote attacker to gain elevated privileges, caused by a vulnerability that can occur when the IIS server is configured to execute applications out of process, which means that they would not be executed within the IIS process itself. This vulnerability could allow a remote attacker with load and execute permissions on the IIS server to load a malicious application on the server that could possibly be executed with LocalSystem privileges.
Consequences:
Gain Privileges
Remedy:
Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS03-018. See References.
Note: Microsoft originally provided a patch for this vulnerability in MS02-062, but it was superseded by the patch released with MS03-018.
References:
- A3 Security Consulting: CR@K Vulnerability Research: MS IIS out of process privilege elevation vulnerability(A3CR@K-Vul-2002-06-002).
- CIAC Information Bulletin N-011: Cumulative Patch for Internet Information Service.
- 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-6068: Multiple Microsoft IIS Vulnerabilities
- BID-6069: Microsoft IIS Out Of Process Privilege Escalation Vulnerability
- CVE-2002-0869: Unknown vulnerability in the hosting process (dllhost.exe) for Microsoft Internet Information Server (IIS) 4.0 through 5.1 allows remote attackers to gain privileges by executing an out of process application that acquires LocalSystem privileges, aka Out of Process Privilege Elevation.
Platforms Affected:
- Microsoft Internet Information Server 4.0
- Microsoft Internet Information Server 5.0
- Microsoft Internet Information Server 5.1
Reported:
Oct 30, 2002
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