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Last updated: 5/27/2016 2:36:06 AM

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Vulnerability Summary for CVE-2007-0347

Original release date: 01/29/2007
Last revised: 03/07/2011


The is_eow function in format.c in CVSTrac before 2.0.1 does not properly check for the "'" (quote) character, which allows remote authenticated users to execute limited SQL injection attacks and cause a denial of service (database error) via a ' character in certain messages, tickets, or Wiki entries.


The DoS vulnerability exists because the is_eow() function in "format.c" does NOT just check the FIRST character of the supplied string for an End-Of-Word terminating character, but instead iterates over string and this way can skip a single embedded quotation mark. The is_repository_file() function then in turn assumes that the filename string can never contain a single quotation mark and traps into a SQL escaping problem.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.3 MEDIUM
Impact Subscore: 2.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows disruption of service
An SQL injection via this technique is somewhat limited as is_eow() bails on whitespace. So while one _can_ do an SQL injection, one is limited to SQL queries containing only characters which get past the function isspace(3). This effectively limits attacks to SQL commands like "VACUUM".


Successful remote unauthenticated exploit requires that CVSTrac is explicitly configured to allow anonymous users to add tickets (it is not by default).

References to Advisories, Solutions, and Tools

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External Source: BID
Name: 22296
External Source: CONFIRM
Name: http://www.cvstrac.org/cvstrac/chngview?cn=850
Type: Advisory; Patch Information
External Source: FULLDISC
Name: 20070129 CVSTrac 2.0.0 Denial of Service (DoS) vulnerability
Type: Advisory; Patch Information
External Source: SREASON
Name: 2192
External Source: VUPEN
Name: ADV-2007-0398
External Source: BUGTRAQ
Name: 20070129 CVSTrac 2.0.0 Denial of Service (DoS) vulnerability
Type: Advisory; Patch Information
External Source: MISC
Name: http://www.cvstrac.org/cvstrac/tktview?tn=683
Type: Advisory; Patch Information
External Source: OPENPKG
Name: OpenPKG-SA-2007.008
Type: Advisory

Technical Details

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