7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.011 Low
EPSS
Percentile
84.2%
The Squid LDAP authentication routine squid_ldap_auth()
fails to check for input characters, such as whitespace, that could be misused to possibly bypass access restrictions.
Squid functions as a web proxy and cache application for a number of protocols, and includes support for lightweight directory access protocol (LDAP) authentication. However, the squid_ldap_auth()
function does not properly check for and sanitize input containing whitespace. This may allow remote attackers to log in using variants of existing user names, leading to bypass of security restrictions or creation of arbitrary accounting data.
Remote attackers may be able to gain elevated privileges or could pollute accounting data with invalid entries. This flaw is platform independent.
Apply an update
Administrators should obtain an updated version of Squid from their vendor if LDAP authentication is used.
Team Squid has created a patch for the current release version of Squid: squid-2.5.STABLE7-ldap_spaces.patch
This flaw has been patched in Squid 2.5.STABLE8-RC4. More details are available in the Squid Bugzilla bug #1187.
Squid administrators may either disable LDAP authentication or block usernames containing whitespace as a workaround.
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Updated: February 04, 2005
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Team Squid has created a patch for the current release version of Squid: squid-2.5.STABLE7-ldap_spaces.patch
This flaw has been patched in Squid 2.5.STABLE8-RC4. More details are available in the Squid Bugzilla bug #1187.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23924198 Feedback>).
Group | Score | Vector |
---|---|---|
Base | ||
Temporal | ||
Environmental |
Thanks to Team Squid for reporting this vulnerability, who in turn credit Andrew P with the discovery of this flaw.
This document was written by Ken MacInnis based primarily on information provided by Team Squid.
CVE IDs: | CVE-2005-0173 |
---|---|
Severity Metric: | 6.30 Date Public: |