CVE-2007-1701

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 9.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2007-03-27 · updated 2026-06-16
Weakness: CWE-502

Description

PHP 4 before 4.4.5, and PHP 5 before 5.2.1, when register_globals is enabled, allows context-dependent attackers to execute arbitrary code via deserialization of session data, which overwrites arbitrary global variables, as demonstrated by calling session_decode on a string beginning with "_SESSION|s:39:".

Affected products

PHP: from 4.0.0 before 4.4.5; from 5.0.0 before 5.2.1 — fixed in 4.4.5, 5.2.1

How to fix

Upgrade to a fixed version: PHP 4.4.5, 5.2.1. Check the vendor advisory for mitigations.

References

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01056506
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01086137
http://secunia.com/advisories/25423
http://secunia.com/advisories/25445
http://secunia.com/advisories/25850
http://security.gentoo.org/glsa/glsa-200705-19.xml
http://www.php-security.org/MOPB/MOPB-31-2007.html
http://www.securityfocus.com/bid/23120
http://www.vupen.com/english/advisories/2007/1991
http://www.vupen.com/english/advisories/2007/2374
https://exchange.xforce.ibmcloud.com/vulnerabilities/33658
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11034

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