Actively exploited · Published Apr 27, 2020 · Assigned by mitre

CVE-2020-12271

Critical 10.0 Exploited Ransomware

In plain English

A critical-severity SQL injection in SFOS from Sophos. Attackers are actively exploiting it in the wild (listed by CISA on November 3, 2021). It has been used in ransomware campaigns. The chance it is exploited in the next 30 days is estimated at 42.4% (higher than 99% of all known vulnerabilities). Apply updates per vendor instructions.

Severity (CVSS 3.0)10.0Critical

Exploit odds (30 days)42.4%top 1.3% of all CVEs

Exploited in the wildYesCISA KEV since Nov 3, 2021

Attack toolingNoneno public tooling known

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by May 3, 2022.

Official description

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 (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

Weakness: CWE-89 · Vector: CVSS:3.0/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N

References

https://cwe.mitre.org/data/definitions/89.html x_refsource_MISC
https://community.sophos.com/kb/en-us/135412 x_refsource_MISC
https://news.sophos.com/en-us/2020/04/26/asnarok/ x_refsource_MISC
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-12271 government-resource