Ettercap: Format string vulnerability

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200506-07 / ettercap
Release Date	June 11, 2005
Latest Revision	June 11, 2005: 01
Impact	high
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
net-analyzer/ettercap	< 0.7.3	>= 0.7.3	All supported architectures

Related bugreports: #94474

Synopsis

A format string vulnerability in Ettercap could allow a remote attacker to execute arbitrary code.

2. Impact Information

Background

Ettercap is a suite of tools for content filtering, sniffing and man in the middle attacks on a LAN.

Description

The curses_msg function of Ettercap's Ncurses-based user interface insecurely implements formatted printing.

Impact

A remote attacker could craft a malicious network flow that would result in executing arbitrary code with the rights of the user running the Ettercap tool, which is often root.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Ettercap users should upgrade to the latest available version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/ettercap-0.7.3"

4. References

CAN-2005-1796

Page updated June 11, 2005

Summary: This is a Gentoo Linux Security Advisory

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