The session_start function in ext/session in PHP 4.x up to 4.4.7 and 5.x up to 5.2.3 allows remote attackers to insert arbitrary attributes into the session cookie via special characters in a cookie that is obtained from (1) PATH_INFO, (2) the session_id function, and (3) the session_start function, which are not encoded or filtered when the new session cookie is generated, a related issue to CVE-2006-0207.
NOTE: The following CVSS v2.0 metrics and score provided are preliminary and subject to review.
|Base Score:||4.3||Base Metrics:||AV:N/AC:M/Au:N/C:N/I:P/A:N|
|Access Vector:||Network||Attack Complexity:||Medium|
|Authentication:||None required||Confidentiality Impact:||None|
|Integrity Impact:||Partial||Availability Impact:||None|
|Oracle Enterprise Linux version 4 (php)||ELSA-2007-0890||2007-09-20|
|Oracle Linux version 5 (php)||ELSA-2007-0890||2007-09-20|
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