CVE-2002-1840: Critical severity Irssi irssi vulnerability
irssi IRC client 0.8.4, when downloaded after 14-March-2002, could contain a backdoor in the configuration file, which allows remote attackers to access the system.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
Isolate or restrict network access for systems running irssi 0.8.4 obtained after 14-March-2002 (for example, disconnect from untrusted networks or apply network ACLs) until their configuration files have been verified clean and any backdoors removed.
- Operational
For any installations of irssi 0.8.4 that were downloaded after 14-March-2002, inspect the irssi configuration file for evidence of a backdoor. If a backdoor entry or unauthorized configuration is found, remove the malicious entries, restore the configuration from a known-good copy, or reinstall irssi 0.8.4 from a trusted source and verify system integrity.
Event History
Frequently Asked Questions
What is the severity of CVE-2002-1840?
CVE-2002-1840 is considered a high-severity vulnerability due to the potential for remote attackers to gain unauthorized access to the system.
How do I fix CVE-2002-1840?
To fix CVE-2002-1840, users should uninstall the affected version 0.8.4 of the irssi IRC client and install a secure version that does not contain the backdoor.
How can I tell if my version of irssi is affected by CVE-2002-1840?
You can determine if your irssi version is affected by checking if it is 0.8.4 and was downloaded after March 14, 2002.
What risks are associated with CVE-2002-1840?
The primary risk associated with CVE-2002-1840 is that remote attackers could exploit the backdoor to access and control the compromised system.
Is any action required if I am using a version of irssi newer than 0.8.4 in relation to CVE-2002-1840?
If you are using a version of irssi newer than 0.8.4, you are not affected by CVE-2002-1840, but it's always good practice to keep software updated.