HTTP: Internet Explorer Gopher Link Embedded in "IMG" Tag

This signature detects attempts to exploit a known vulnerability against Microsoft Internet Explorer using the Gopher protocol. On a Web server, attackers can embed a malicious URL in an image tag, causing a client to visit that URL and become vulnerable to arbitrary code execution.

Extended Description

Microsoft Internet Explorer, Proxy Server and ISA Server includes a gopher client. Reportedly, these clients are vulnerable to a buffer overflow condition. The vulnerability exists in the component that parses gopher replies. A malicious server is able to send a reply that will overflow the buffer and run arbitrary code on a user's system.

Affected Products

Microsoft proxy_server

Short Name
HTTP:STC:IE:GOPHER-IMGTAG
Severity
Warning
Recommended
False
Recommended Action
None
Category
HTTP
Keywords
"IMG" CVE-2002-0371 Embedded Explorer Gopher Internet Link Tag bid:4930 in
Release Date
04/22/2003
Supported Platforms

srx-branch-12.3

srx-19.3

srx-branch-19.3

vsrx3bsd-19.2

srx-branch-19.4

vsrx-19.4

mx-12.3

mx-19.4

vmx-19.4

mx-19.3

vsrx3bsd-19.4

srx-19.4

vsrx-12.3

vmx-19.3

vsrx-19.2

srx-12.3

Sigpack Version
3375
False Positive
Unknown
Vendors

Microsoft

CVSS Score

7.5

Found a potential security threat?