ircu IP information disclosure

ircu-ip-information-disclosure (35997)

Low Risk

Description:

ircu could allow a remote attacker to obtain sensitive information. By sending a specially-crafted silence command and ctcp ping, a remote attacker could exploit this vulnerability to obtain the victim's IP address, even if +x mode is enabled.

*CVSS:

Base Score:	3.5
Access Vector:	Remote
Access Complexity:	Low
Authentication:	Not Required
Confidentiality Impact:	Partial
Integrity Impact:	None
Availability Impact:	None
Temporal Score:	2.6
Exploitability:	Unproven
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Obtain Information

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-2007-4411: ircu 2.10.12.05 and earlier allows remote attackers to discover the hidden IP address of arbitrary +x users via a series of /silence commands with (1) CIDR mask arguments or (2) certain other arguments that represent groups of IP addresses, then monitoring CTCP ping replies.

Platforms Affected:

• Carlo Wood ircu 2.10.12.05 and prior

Reported:

Aug 12, 2007

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 the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email xforce@iss.net

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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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