Path Traversal in Drupal
CVE-2020-36193
Tar.php in Archive_Tar through 1.4.11 allows write operations with Directory Traversal due to inadequate checking of symbolic links, a related issue to CVE-2020-28948.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.706 (99.4th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.706 · newest: 0.706 · change: 0.000
Affected products
- Drupal
- PHP Archive Tar
- Debian Linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 32, 33, 34
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- github.com/pear/Archive_Tar/commit/cde460582ff389404b5b3ccb59374e9b389de916 (Patch)
- www.drupal.org/sa-core-2021-001 (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/01/msg00018.html (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202101-23 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Broken Link)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Broken Link)
- lists.debian.org/debian-lts-announce/2021/04/msg00007.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2021/dsa-4894 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Broken Link)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Broken Link)
Frequently asked questions
- What is CVE-2020-36193?
- CVE-2020-36193 is a high-severity vulnerability in Drupal, classified under Path Traversal. CVSS score: 7.5/10. Published 2021-01-18.
- How severe is CVE-2020-36193?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-36193 known to be exploited?
- Yes. CVE-2020-36193 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-08-25), indicating it is being actively exploited. 4 public proof-of-concept repositories are indexed.