CVE-2009-0652: Medium severity Mozilla SeaMonkey vulnerability
The Internationalized Domain Names (IDN) blacklist in Mozilla Firefox 3.0.6 and other versions before 3.0.9; Thunderbird before 2.0.0.21; and SeaMonkey before 1.1.15 does not include box-drawing characters, which allows remote attackers to spoof URLs and conduct phishing attacks, as demonstrated by homoglyphs of the / (slash) and ? (question mark) characters in a subdomain of a .cn domain name, a different vulnerability than CVE-2005-0233. NOTE: some third parties claim that 3.0.6 is not affected, but much older versions perhaps are affected.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Mozilla Firefoxto a version that resolves this vulnerability.Fixed in 3.0.9 - Upgrade
Upgrade
Thunderbirdto a version that resolves this vulnerability.Fixed in 2.0.0.21 - Upgrade
Upgrade
Mozilla SeaMonkeyto a version that resolves this vulnerability.Fixed in 1.1.15
Event History
Frequently Asked Questions
What is the severity of CVE-2009-0652?
CVE-2009-0652 has a medium severity rating due to its potential for phishing attacks through URL spoofing.
How do I fix CVE-2009-0652?
To fix CVE-2009-0652, upgrade to a version of Mozilla Firefox that is 3.0.9 or later, Thunderbird 2.0.0.21 or later, or SeaMonkey 1.1.15 or later.
Who is affected by CVE-2009-0652?
CVE-2009-0652 affects users of Mozilla Firefox versions prior to 3.0.9, Thunderbird versions before 2.0.0.21, and SeaMonkey versions prior to 1.1.15.
What kind of attacks can CVE-2009-0652 allow?
CVE-2009-0652 allows remote attackers to conduct phishing attacks by spoofing URLs using non-standard characters.
Is there a workaround for CVE-2009-0652?
While upgrading to a secure version is the best fix, users can also avoid clicking on links from untrusted sources to mitigate risks associated with CVE-2009-0652.