Known exploited vulnerability
CVE-2022-1040
The short answer
CVE-2022-1040 affects Sophos Sophos Firewall and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-03-31: attackers are using it, so patch it first.
What it is
An authentication bypass vulnerability in the User Portal and Webadmin allows a remote attacker to execute code in Sophos Firewall version v18.5 MR3 and older.
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Mar 31, 2022
Federal due date Apr 21, 2022
EPSS, next 30 days
100%
Higher than 100% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions.
Affected products
Sophos Firewall. NVD's record lists the exact affected versions.
References
- www.exploit-db.com/exploits/51006 ExploitThird Party AdvisoryVDB Entry
- www.sophos.com/en-us/security-advisories/sophos-sa-20220325-sfos-rce MitigationVendor Advisory
- www.exploit-db.com/exploits/51006 ExploitThird Party AdvisoryVDB Entry
- www.sophos.com/en-us/security-advisories/sophos-sa-20220325-sfos-rce MitigationVendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-1040 US Government Resource
Questions
Is CVE-2022-1040 being exploited?
Yes. CISA added CVE-2022-1040 to its Known Exploited Vulnerabilities catalog on 2022-03-31, with a federal remediation due date of 2022-04-21.
How do I fix CVE-2022-1040?
CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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