PT-2007-5585 · Undernet · Ircu

Published 2007-08-18 · Updated 2018-10-15 · CVE-2007-4404

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions ircu version 2.10.12.01

Description The issue allows remote attackers to cause a denial of service in two ways: by joining two channels with certain long names that differ in the final character, which triggers a protocol violation and results in a flood of wallops, and by sending a "J 0:#channel" message on a channel without an apass, which causes the daemon to crash. Additionally, remote authenticated operators can cause a denial of service by issuing a remote "names -D" command, leading to a daemon crash.

Recommendations For ircu version 2.10.12.01, consider restricting access to the names command and limiting the ability to join channels with long names to prevent exploitation until a patch is available. As a temporary workaround, restrict the use of the "J 0:#channel" message on channels without an apass to minimize the risk of daemon crash.

Exploit

Fix

Related Identifiers

CVE-2007-4404

Affected Products

Ircu

References · 10

• 🔥 http://securityfocus.com/bid/25285 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2007-4404 · Security Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/35987 · Note
• http://osvdb.org/46711 · Note
• http://securityreason.com/securityalert/3031 · Note
• http://osvdb.org/46712 · Note
• http://osvdb.org/46710 · Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/35986 · Note
• http://securityfocus.com/archive/1/476285/100/0/threaded · Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/35984 · Note