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CVE-2020-7070 Detail

Description

In PHP versions 7.2.x below 7.2.34, 7.3.x below 7.3.23 and 7.4.x below 7.4.11, when PHP is processing incoming HTTP cookie values, the cookie names are url-decoded. This may lead to cookies with prefixes like __Host confused with cookies that decode to such prefix, thus leading to an attacker being able to forge cookie which is supposed to be secure. See also CVE-2020-8184 for more information.


Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  5.3 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Nist CVSS score does not match with CNA score
CNA:  PHP Group
Base Score:  4.3 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://cve.circl.lu/cve/CVE-2020-8184 Third Party Advisory 
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00045.html Mailing List  Third Party Advisory 
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00067.html Mailing List  Third Party Advisory 
https://bugs.php.net/bug.php?id=79699 Issue Tracking  Vendor Advisory 
https://hackerone.com/reports/895727 Exploit  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2020/10/msg00008.html Mailing List  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7EVDN7D3IB4EAI4D3ZOM2OJKQ5SD7K4E/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P2J3ZZDHCSX65T5QWV4AHBN7MOJXBEKG/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RRU57N3OSYZPOMFWPRDNVH7EMYOTSZ66/
https://security.gentoo.org/glsa/202012-16 Third Party Advisory 
https://security.netapp.com/advisory/ntap-20201016-0001/ Third Party Advisory 
https://usn.ubuntu.com/4583-1/ Third Party Advisory 
https://www.debian.org/security/2021/dsa-4856 Third Party Advisory 
https://www.oracle.com/security-alerts/cpuoct2021.html Not Applicable  Third Party Advisory 
https://www.tenable.com/security/tns-2021-14 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-565 Reliance on Cookies without Validation and Integrity Checking cwe source acceptance level NIST  
CWE-20 Improper Input Validation Contributor acceptance level PHP Group  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

16 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-7070
NVD Published Date:
10/02/2020
NVD Last Modified:
11/06/2023
Source:
PHP Group