CVE-2008-5533

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…

published December 12, 2008

CVSS
—
EPSS
3%
Percentile
87.0
In the wild
Unconfirmed
What it is

⚠️ A sneaky header can bypass K7 AntiVirus! If you're using Internet Explorer 6 or 7, malicious documents can slip past your defenses like a wolf in sheep's clothing. 🐑 Think of it like a restaurant that lets in any delivery with a valid-looking label. The chef doesn't check what's in the box, so a dangerous dish might end up on the menu! An attacker could craft a malicious HTML document that evades detection, leading to potential malware execution. This could compromise your system, steal sensitive data, or cause extensive damage without raising any alarms.

Put simply

Think of it like a restaurant that lets in any delivery with a valid-looking label. The chef doesn't check what's in the box, so a dangerous dish might end up on the menu! This vulnerability allows attackers to bypass malware detection by placing an 'MZ' header at the start of an HTML document and renaming the file with misleading extensions, like '.txt' or '.jpg'. This deception can exploit users' trust in the K7 AntiVirus software when used with outdated versions of Internet Explorer.

What to do

An attacker could craft a malicious HTML document that evades detection, leading to potential malware execution. This could compromise your system, steal sensitive data, or cause extensive damage without raising any alarms. To protect yourself, ensure that you update K7 AntiVirus to the latest version as well as your browser if you're still using IE 6 or 7. Implement a robust security policy that includes scanning all files, regardless of their extensions, and consider using more modern browsers with enhanced security measures. You’ve got this! Stay vigilant and keep your defenses strong. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02951 · 87.0th percentile
Published
2008-12-12T18:13Z
EPSS history
Timeline
  • 12 DEC 18:13Z
    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…
    cvelistv5