Buffer Overflow Vulnerability in Sophos XG Firewall
CVE-2020-15069

9.8CRITICAL

Key Information:

Vendor
Sophos
Status
Xg Firewall Firmware
Vendor
CVE Published:
29 June 2020

Badges

👾 Exploit Exists🟣 EPSS 64%🦅 CISA Reported

Summary

A vulnerability in the Sophos XG Firewall allows for a buffer overflow caused by improper validation in the HTTP/S Bookmarks feature for clientless access. This flaw can enable attackers to execute remote code on devices running affected versions of the firewall. A hotfix, HF062020.1, has been published to remediate this issue for all firewalls operating on the 17.x version series.

CISA Reported

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

References

https://community.sophos.com/b/security-blog/posts/adviso...
x_refsource_CONFIRM

EPSS Score

64% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • Vulnerability published

  • Vulnerability Reserved

.