VulnerabilityModified
CVE-2020-24379
WebDAV implementation in Yaws web server versions 1.81 to 2.0.7 is vulnerable to XXE injection.
CRITICAL 9.8EPSS 3.35%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
WebDAV implementation in Yaws web server versions 1.81 to 2.0.7 is vulnerable to XXE injection.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.35% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-611
- Affected
- yaws/yaws · canonical/ubuntu linux · debian/debian linux
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.