CVE-2020-7070
MEDIUMCVSS 5.3/10EPSS 4.97%
Last modified
CVE-2020-7070 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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. EPSS estimates a 4.97% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Php | Php | >= 7.2.0, < 7.2.34 |
| Php | Php | >= 7.3.0, < 7.3.23 |
| Php | Php | >= 7.4.0, < 7.4.11 |
| Fedoraproject | Fedora | 31 |
| Fedoraproject | Fedora | 32 |
| Fedoraproject | Fedora | 33 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
| Opensuse | Leap | 15.1 |
| Opensuse | Leap | 15.2 |
| Canonical | Ubuntu Linux | 12.04 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 20.04 |
| Netapp | Clustered Data Ontap | All versions |
| Tenable | Tenable.Sc | < 5.19.0 |
References
- http://cve.circl.lu/cve/CVE-2020-8184Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00045.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00067.htmlMailing List, Third Party Advisory
- https://bugs.php.net/bug.php?id=79699Issue Tracking, Vendor Advisory
- https://hackerone.com/reports/895727Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00008.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202012-16Third 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-4856Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlNot Applicable, Third Party Advisory
- https://www.tenable.com/security/tns-2021-14Third Party Advisory
- http://cve.circl.lu/cve/CVE-2020-8184Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00045.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00067.htmlMailing List, Third Party Advisory
- https://bugs.php.net/bug.php?id=79699Issue Tracking, Vendor Advisory
- https://hackerone.com/reports/895727Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00008.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202012-16Third 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-4856Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.htmlNot Applicable, Third Party Advisory
- https://www.tenable.com/security/tns-2021-14Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-7070?
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.
How severe is CVE-2020-7070?
CVE-2020-7070 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 4.97% probability of exploitation in the next 30 days.
How do I fix CVE-2020-7070?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2020
- CVE-2020-7064In PHP versions 7.2.x below 7.2.9, 7.3.x below 7.3.16 and 7.…5.4
- CVE-2020-7065In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, wh…8.8
- CVE-2020-7066In PHP versions 7.2.x below 7.2.29, 7.3.x below 7.3.16 and 7…4.3
- CVE-2020-7067In PHP versions 7.2.x below 7.2.30, 7.3.x below 7.3.17 and 7…7.5
- CVE-2020-7068In PHP versions 7.2.x below 7.2.33, 7.3.x below 7.3.21 and 7…3.6
- CVE-2020-7069In PHP versions 7.2.x below 7.2.34, 7.3.x below 7.3.23 and 7…6.5
- CVE-2020-7071In PHP versions 7.3.x below 7.3.26, 7.4.x below 7.4.14 and 8…5.3
- CVE-2020-7079An improper signature validation vulnerability in Autodesk D…7.8
- CVE-2020-7080A buffer overflow vulnerability in the Autodesk FBX-SDK vers…7.8
- CVE-2020-7081A type confusion vulnerability in the Autodesk FBX-SDK versi…8.8
- CVE-2020-7082A use-after-free vulnerability in the Autodesk FBX-SDK versi…8.8
- CVE-2020-7083An intager overflow vulnerability in the Autodesk FBX-SDK ve…6.5
Are you affected by CVE-2020-7070?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST