VulnerabilityModified
CVE-2010-1155
Irssi before 0.8.15, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof…
MEDIUM 6.8EPSS 1.56%
Does this matter?
Lower severity and a low EPSS score (1.56%). Track it; it rarely justifies an emergency change on its own.
Description
Irssi before 0.8.15, when SSL is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) field or a Subject Alternative Name field of the X.509 certificate, which allows man-in-the-middle attackers to spoof IRC servers via an arbitrary certificate.
- CVSS 2.0
- 6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
- EPSS
- 1.56% probability · 74th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- irssi/irssi
- Source
- secalert@redhat.com
References
- http://github.com/ensc/irssi-proxy/commit/85bbc05b21678e80423815d2ef1dfe26208491ab
- http://irssi.org/news
- http://irssi.org/news/ChangeLog
- http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041054.html
- http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html
- http://marc.info/?l=oss-security&m=127098845125270&w=2
- http://marc.info/?l=oss-security&m=127110132019166&w=2
- http://marc.info/?l=oss-security&m=127116251220784&w=2
- http://marc.info/?l=oss-security&m=127119240204394&w=2
- http://secunia.com/advisories/39365Vendor Advisory
- http://secunia.com/advisories/39620
- http://secunia.com/advisories/39797
- http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.497301
- http://www.ubuntu.com/usn/USN-929-1
- http://www.vupen.com/english/advisories/2010/0856Patch, Vendor Advisory
- http://www.vupen.com/english/advisories/2010/0987
- http://www.vupen.com/english/advisories/2010/1107
- http://www.vupen.com/english/advisories/2010/1110
- https://exchange.xforce.ibmcloud.com/vulnerabilities/57790
- http://github.com/ensc/irssi-proxy/commit/85bbc05b21678e80423815d2ef1dfe26208491ab
- http://irssi.org/news
- http://irssi.org/news/ChangeLog
- http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041054.html
- http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html
- http://marc.info/?l=oss-security&m=127098845125270&w=2
- http://marc.info/?l=oss-security&m=127110132019166&w=2
- http://marc.info/?l=oss-security&m=127116251220784&w=2
- http://marc.info/?l=oss-security&m=127119240204394&w=2
- http://secunia.com/advisories/39365Vendor Advisory
- http://secunia.com/advisories/39620
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.