CVE-2020-24379
CRITICALCVSS 9.8/10EPSS 3.35%
Last modified
CVE-2020-24379 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. WebDAV implementation in Yaws web server versions 1.81 to 2.0.7 is vulnerable to XXE injection.. EPSS estimates a 3.35% chance of exploitation in the next 30 days.
Description
WebDAV implementation in Yaws web server versions 1.81 to 2.0.7 is vulnerable to XXE injection.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Yaws | Yaws | >= 1.81, <= 2.0.7 |
| Canonical | Ubuntu Linux | 18.04 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
References
- https://github.com/erlyaws/yaws/commits/masterPatch, Third Party Advisory
- https://github.com/vulnbe/poc-yaws-dav-xxeExploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00022.htmlMailing List, Third Party Advisory
- https://packetstormsecurity.com/files/159106/Yaws-2.0.7-XML-Injection-Command-Injection.htmlExploit, Third Party Advisory, VDB Entry
- https://usn.ubuntu.com/4569-1/Third Party Advisory
- https://vuln.be/post/yaws-xxe-and-shell-injections/Broken Link, Third Party Advisory
- https://www.debian.org/security/2020/dsa-4773Third Party Advisory
- https://github.com/erlyaws/yaws/commits/masterPatch, Third Party Advisory
- https://github.com/vulnbe/poc-yaws-dav-xxeExploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00022.htmlMailing List, Third Party Advisory
- https://packetstormsecurity.com/files/159106/Yaws-2.0.7-XML-Injection-Command-Injection.htmlExploit, Third Party Advisory, VDB Entry
- https://usn.ubuntu.com/4569-1/Third Party Advisory
- https://vuln.be/post/yaws-xxe-and-shell-injections/Broken Link, Third Party Advisory
- https://www.debian.org/security/2020/dsa-4773Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-24379?
WebDAV implementation in Yaws web server versions 1.81 to 2.0.7 is vulnerable to XXE injection.
How severe is CVE-2020-24379?
CVE-2020-24379 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.35% probability of exploitation in the next 30 days.
How do I fix CVE-2020-24379?
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.
Are you affected by CVE-2020-24379?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST