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CVE-2020-12271: Sophos SFOS SQL Injection Vulnerability

criticalknown exploitedCVE-2020-12271
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Sophos Firewall operating system (SFOS) firmware contains a SQL injection vulnerability when configured with either the administration (HTTPS) service or the User Portal is exposed on the WAN zone. Successful exploitation may cause remote code execution to exfiltrate usernames and hashed passwords for the local device admin(s), portal admins, and user accounts used for remote access (but not external Active Directory or LDAP passwords).

CSIRTS triage

vendor: Sophosproduct: SFOSRemote code execution
What
There is a SQL injection vulnerability that may allow remote code execution and exfiltration of sensitive information.
Who is affected
Deployments of Sophos Firewall operating system (SFOS) with exposed administration or User Portal services on the WAN zone are affected.
Urgency
Remediation is urgent due to successful exploitation being possible and the critical severity of the vulnerability.
Action
Apply the latest firmware update to mitigate the vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2021-11-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2020-12271

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2020-12271coverage & exploitation statusNVD · CVE.org

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