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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200602-11] OpenSSH, Dropbear: Insecure use of system() call

Vulnerability Assessment Details

[GLSA-200602-11] OpenSSH, Dropbear: Insecure use of system() call

Vulnerability Assessment Summary
OpenSSH, Dropbear: Insecure use of system() call

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200602-11
(OpenSSH, Dropbear: Insecure use of system() call)

To copy from a local filesystem to another local filesystem, scp
constructs a command line using 'cp' which is then executed via
system(). Josh Bressers discovered that special characters are not
escaped by scp, but are simply passed to the shell.

Impact

By tricking other users or applications to use scp on maliciously
crafted filenames, a local attacker user can execute arbitrary commands
with the rights of the user running scp.

Workaround

There is no known workaround at this time.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0225

Solution:
All OpenSSH users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/openssh-4.2_p1-r1"
All Dropbear users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/dropbear-0.47-r1"

Network Security Threat Level: Low

Networks Security ID:

Vulnerability Assessment Copyright: (C) 2006 Michel Arboi

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