CVE-2020-7247
critical-risk
Published 2020-01-29
smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell metacharacters in a MAIL FROM field. This affects the "uncommented" default configuration. The issue exists because of an incorrect return value upon failure of input validation.
Do I need to act?
!
94.1% chance of exploitation in next 30 days
EPSS score — higher than 6% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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Fix available
Upgrade to: 9dcfda045474d8903224d175907bfc29761dcb45, 9dcfda045474d8903224d175907bfc29761dcb45
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (6)
Affected Vendors
References (29)
Mailing List
https://seclists.org/bugtraq/2020/Jan/51
Third Party Advisory
https://usn.ubuntu.com/4268-1/
Mailing List
https://www.debian.org/security/2020/dsa-4611
Third Party Advisory
https://www.kb.cert.org/vuls/id/390745
and 9 more references
79
/ 100
critical-risk
Severity
32/34 · Critical
Exploitability
34/34 · Critical
Exposure
13/34 · Low