ircu timestamp unauthorized access

ircu-timestamp-unauthorized-access (35989)

Medium Risk

Description:

ircu could allow a remote attacker to gain unauthorized access, caused by a vulnerability in the timestamp service. If a channel is empty except for the attacker and the channel is split, an attacker could exploit this vulnerability to gain ops privileges on the channel.

*CVSS:

Base Score:	5.6
Access Vector:	Remote
Access Complexity:	High
Authentication:	Not Required
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	Partial
Temporal Score:	4.1
Exploitability:	Unproven
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Gain Privileges

Remedy:

Upgrade to the latest version of ircu (2.10.12.06 or later), available from the SourceForge.net Web site. See References.

References:

• Full-Disclosure Mailing List, Sun Aug 12 2007 - 10:05:16 CDT: Multiple vulnerabilities in ircu.
• SourceForge.net: Universal Ircd Development.
• wouter.coekaerts.be Web site: Multiple vulnerabilities in ircu.
• BID-25285: Universal Ircd Server Multiple Remote Vulnerabilities
• CVE-2007-4406: ircu 2.10.12.01 through 2.10.12.04 does not remove ops privilege after a join from a server with an older timestamp (TS), which allows remote attackers to gain control of a channel during a split.

Platforms Affected:

• Carlo Wood ircu 2.10.12.01 - .04

Reported:

Aug 12, 2007

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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