CVE-2020-24916

high-risk
Published 2020-09-09

CGI implementation in Yaws web server versions 1.81 to 2.0.7 is vulnerable to OS command injection.

Do I need to act?

!
44.3% chance of exploitation in next 30 days
EPSS score — higher than 56% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (4)

Affected Vendors

Debian Canonical Yaws

References (14)

Patch https://github.com/erlyaws/yaws/commits/master
Exploit https://github.com/vulnbe/poc-yaws-cgi-shell-injection
Mailing List https://lists.debian.org/debian-lts-announce/2020/09/msg00022.html
Exploit https://packetstormsecurity.com/files/159106/Yaws-2.0.7-XML-Injection-Command-In...
Third Party Advisory https://usn.ubuntu.com/4569-1/
Exploit https://vuln.be/post/yaws-xxe-and-shell-injections/
Third Party Advisory https://www.debian.org/security/2020/dsa-4773
Patch https://github.com/erlyaws/yaws/commits/master
Exploit https://github.com/vulnbe/poc-yaws-cgi-shell-injection
Mailing List https://lists.debian.org/debian-lts-announce/2020/09/msg00022.html
Exploit https://packetstormsecurity.com/files/159106/Yaws-2.0.7-XML-Injection-Command-In...
Third Party Advisory https://usn.ubuntu.com/4569-1/
Exploit https://vuln.be/post/yaws-xxe-and-shell-injections/
Third Party Advisory https://www.debian.org/security/2020/dsa-4773
59
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 17/34 · Moderate
Exposure 10/34 · Low