CVE-2014-9277 Deserialization in n/a
Remote attackers can execute arbitrary PHP code via object injection in MediaWiki's flash policy handler, requiring immediate upgrade.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2014-9277?
CVE-2014-9277 is a high-severity unsafe deserialization vulnerability in Mediawiki Mediawiki, published on 4 Jan 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The wfMangleFlashPolicy function in OutputHandler.php in MediaWiki before 1.19.22, 1.20.x through 1.22.x before 1.22.14, and 1.23.x before 1.23.7 allows remote attackers to conduct PHP object injection attacks via a crafted string containing <cross-domain-policy> in a PHP format request, which causes the string length to change when converting the request to <NOT-cross-domain-policy>.
Weakness: CWE-77
Which versions are affected by CVE-2014-9277?
It affects 1 product.
Products include Mediawiki Mediawiki.
How do I fix CVE-2014-9277?
Upgrade to a fixed version.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2014-9277 being exploited?
There is no known exploitation of CVE-2014-9277 in the wild and no public exploit code.
Other vulnerabilities in Mediawiki Mediawiki
Sources
Also known as DEBIAN-CVE-2014-9277, DSA-3100-1, GHSA-p3m7-7j6c-hwc3.