CVE-2008-5533 Security feature bypass in n/a

Critical 9.3 Published 12 Dec 2008 Updated 7 Aug 2024

Remote attackers can bypass K7AntiVirus malware detection in Internet Explorer by manipulating file headers and extensions, allowing malicious HTML documents to execute.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2008-5533?

CVE-2008-5533 is a critical vulnerability in n/a, published on 12 Dec 2008. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

K7AntiVirus 7.10.541 and possibly 7.10.454, when Internet Explorer 6 or 7 is used, allows remote attackers to bypass detection of malware in an HTML document by placing an MZ header (aka "EXE info") at the beginning, and modifying the filename to have (1) no extension, (2) a .txt extension, or (3) a .jpg extension, as demonstrated by a document containing a CVE-2006-5745 exploit.

Weakness: CWE-20

Which versions are affected by CVE-2008-5533?

It affects 1 product.

Products include K7computing Antivirus.

How do I fix CVE-2008-5533?

No fix has been published for CVE-2008-5533 yet. Limit exposure of the affected software until one is available.

Is CVE-2008-5533 being exploited?

There is no known exploitation of CVE-2008-5533 in the wild and no public exploit code.

Sources

Also known as GHSA-v6cv-jf2w-vf97.