CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
AI Score
Confidence
High
EPSS
Percentile
75.7%
The default session serializer in PHP 5.2 through 5.2.13 and 5.3 through 5.3.2 does not properly handle the PS_UNDEF_MARKER marker, which allows context-dependent attackers to modify arbitrary session variables via a crafted session variable name.
lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.html
lists.opensuse.org/opensuse-security-announce/2010-10/msg00000.html
php-security.org/2010/05/31/mops-2010-060-php-session-serializer-session-data-injection-vulnerability/index.html
secunia.com/advisories/42410
www.debian.org/security/2010/dsa-2089
www.redhat.com/support/errata/RHSA-2010-0919.html
www.vupen.com/english/advisories/2010/3081