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 57%🦅 CISA Reported

What is CVE-2020-15069?

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 has reported CVE-2020-15069

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 CVE-2020-15069 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

57% 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

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