CVE-2007-2727
6.4 Medium
AI Score
Confidence
Low
2.6 Low
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:H/Au:N/C:P/I:N/A:N
0.005 Low
EPSS
Percentile
76.6%
The mcrypt_create_iv function in ext/mcrypt/mcrypt.c in PHP before 4.4.7, 5.2.1, and possibly 5.0.x and other PHP 5 versions, calls php_rand_r with an uninitialized seed variable and therefore always generates the same initialization vector (IV), which might allow context-dependent attackers to decrypt certain data more easily because of the guessable encryption keys.
References
blog.php-security.org/archives/80-Watching-the-PHP-CVS.html
bugs.php.net/bug.php?id=40999
cvs.php.net/viewvc.cgi/php-src/ext/mcrypt/mcrypt.c?r1=1.91.2.3.2.9&r2=1.91.2.3.2.10
osvdb.org/36087
secunia.com/advisories/26895
www.fortheloot.com/public/mcrypt.patch
www.mandriva.com/security/advisories?name=MDKSA-2007:187
www.novell.com/linux/security/advisories/2007_15_sr.html
www.php.net/ChangeLog-5.php
www.securityfocus.com/bid/23984
Related
6.4 Medium
AI Score
Confidence
Low
2.6 Low
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:H/Au:N/C:P/I:N/A:N
0.005 Low
EPSS
Percentile
76.6%