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Last updated: 9/18/2014 7:47:46 PM

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National Cyber Awareness System

Vulnerability Summary for CVE-2007-1741

Original release date: 04/13/2007
Last revised: 11/13/2008
Source: US-CERT/NIST

Overview

Multiple race conditions in suexec in Apache HTTP Server (httpd) 2.2.3 between directory and file validation, and their usage, allow local users to gain privileges and execute arbitrary code by renaming directories or performing symlink attacks. NOTE: the researcher, who is reliable, claims that the vendor disputes the issue because "the attacks described rely on an insecure server configuration" in which the user "has write access to the document root."

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 6.2 (MEDIUM) (AV:L/AC:H/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore: 10.0
Exploitability Subscore: 1.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: High
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (04/19/2007)
These attacks are reliant on an insecure configuration of the server - that the user the server runs as has write access to the document root. The suexec security model is not intented to protect against privilege escalation in such a configuration

References to Advisories, Solutions, and Tools

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External Source: BID
Name: 23438
External Source: XF
Name: apache-suexec-privilege-escalation(33584)
External Source: MLIST
Name: [apache-http-dev] 20070328 Re: [Fwd: iDefense Final Notice [IDEF1445]]
External Source: SECTRACK
Name: 1017904
External Source: MLIST
Name: [apache-http-dev] 20070328 [Fwd: iDefense Final Notice [IDEF1445]]
Type: Advisory
External Source: IDEFENSE
Name: 20070411 Apache HTTPD suEXEC Multiple Vulnerabilities
Type: Advisory
External Source: OSVDB
Name: 38639

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