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CVE-2015-8835

9.8 · CRITICAL

The make_http_soap_request function in ext/soap/php_http.c in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 does not properly retrieve keys, which allows remote attackers to cause…

Published May 16, 2016EPSS 6.19%

Overview

CVE-2015-8835 is a critical-severity vulnerability. It was published on May 16, 2016 and has a CVSS 3.0 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The make_http_soap_request function in ext/soap/php_http.c in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 does not properly retrieve keys, which allows remote attackers to cause a denial of service (NULL pointer dereference, type confusion, and application crash) or possibly execute arbitrary code via crafted serialized data representing a numerically indexed _cookies array, related to the SoapClient::__call method in ext/soap/soap.c.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflists.opensuse.org/opensuse-security-announce/2016-04/msg00052.htmlReflists.opensuse.org/opensuse-security-announce/2016-04/msg00056.htmlReflists.opensuse.org/opensuse-security-announce/2016-04/msg00057.htmlReflists.opensuse.org/opensuse-security-announce/2016-04/msg00058.htmlRefphp.net/ChangeLog-5.phpRefrhn.redhat.com/errata/RHSA-2016-2750.htmlRefwww.securityfocus.com/bid/84426Refwww.ubuntu.com/usn/USN-2952-1Refwww.ubuntu.com/usn/USN-2952-2Refbugs.php.net/bug.php?id=70081

How CyberStrike helps

Frequently asked questions

What is CVE-2015-8835?

CVE-2015-8835 is a critical-severity vulnerability. It was published on May 16, 2016 and has a CVSS 3.0 base score of 9.8 (CRITICAL).

How severe is CVE-2015-8835?

This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2015-8835?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2015-8835?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-8835 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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