Sophos SFOS SQL Injection Vulnerability
A SQL injection issue was found in SFOS 17.0, 17.1, 17.5, and 18.0 before 2020-04-25 on Sophos XG Firewall devices, as exploited in the wild in April 2020. This affected devices configured with either the administration (HTTPS) service or…
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 5 / 5
- KEV catalog (CISA)03 Nov 2021
- Exploited in EUVD (ENISA)03 Nov 2021
- Used by ransomwareyes
- EPSS above 10 %42.4%
- No account, over the networkyes
What to do
Fix
Apply the vendor’s fix as soon as it is available.
CISA guidance: Apply updates per vendor instructions.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Description ENISA EUVD
A SQL injection issue was found in SFOS 17.0, 17.1, 17.5, and 18.0 before 2020-04-25 on Sophos XG Firewall devices, as exploited in the wild in April 2020. This affected devices configured with either the administration (HTTPS) service or the User Portal exposed on the WAN zone. A successful attack may have caused remote code execution that exfiltrated 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)
Affected products
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
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Published
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Exploitation reported (ENISA)
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Added to the KEV catalog
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CISA remediation due date
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EPSS peak: 42.4%
References
Other exploited vulnerabilities from the same vendor
- CVE-2020-29574CyberoamOS (CROS) SQL Injection Vulnerability6.5 · Background exploitation
- CVE-2020-15069Sophos XG Firewall Buffer Overflow Vulnerability6.6 · Background exploitation
- CVE-2023-1671Sophos Web Appliance Command Injection Vulnerability9.3 · Background exploitation
- CVE-2022-3236Sophos Firewall Code Injection Vulnerability9.3 · Background exploitation
- CVE-2022-1040Sophos Firewall Authentication Bypass Vulnerability9.3 · Background exploitation
- CVE-2020-25223Sophos SG UTM Remote Code Execution Vulnerability9.2 · Background exploitation