Vulnerability Assessment & Network Security Forums



If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.


Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200405-20] Insecure Temporary File Creation In MySQL


Vulnerability Assessment Details

[GLSA-200405-20] Insecure Temporary File Creation In MySQL

Vulnerability Assessment Summary
Insecure Temporary File Creation In MySQL

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200405-20
(Insecure Temporary File Creation In MySQL)


The MySQL bug reporting utility (mysqlbug) creates a temporary file to log
bug reports to. A malicious local user with write access to the /tmp
directory could create a symbolic link of the name mysqlbug-N
pointing to a protected file, such as /etc/passwd, such that when mysqlbug
creates the Nth log file, it would end up overwriting the target
file. A similar vulnerability exists with the mysql_multi utility, which
creates a temporary file called mysql_multi.log.

Impact

Since mysql_multi runs as root, a local attacker could use this to destroy
any other users' data or corrupt and destroy system files.

Workaround

One could modify both scripts to log to a directory that users do not have
write permission to, such as /var/log/mysql/.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0381
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0388


Solution:
All users should upgrade to the latest stable version of MySQL.
# emerge sync
# emerge -pv ">=dev-db/mysql-4.0.18-r2"
# emerge ">=dev-db/mysql-4.0.18-r2"


Network Security Threat Level: Medium


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2005 Michel Arboi

Cables, Connectors

HP PROLIANT MICROSERVER G8 E3-1220LV2 2.3GHZ 8GB 1TB MIDLINE
$789.0
HP PROLIANT MICROSERVER G8 E3-1220LV2 2.3GHZ 8GB 1TB MIDLINE pictureHP PROLIANT MICROSERVER G8 E3-1220LV2 2.3GHZ 16GB 3 X 1TB MIDLINE
$1199.0
HP PROLIANT MICROSERVER G8 E3-1220LV2 2.3GHZ 16GB 3 X 1TB MIDLINE pictureHP PROLIANT MICROSERVER G8 E3-1220LV2 2.3GHZ 4GB 1TB MIDLINE
$749.0
HP PROLIANT MICROSERVER G8 E3-1220LV2 2.3GHZ 4GB 1TB MIDLINE pictureLantronix MSS-100 Fast Ethernet Micro Serial Server With Power Supply Free S/H
$29.95
Lantronix MSS-100 Fast Ethernet Micro Serial Server With Power Supply Free S/H  picture


Discussions

No Discussions have been posted on this vulnerability.