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CVE-2017-18014

An NC-25986 issue was discovered in the Logging subsystem of Sophos XG Firewall with SFOS before 17.0.3 MR3. An unauthenticated user can trigger a persistent XSS vulnerability found in the WAF log page (Control Center -> Log Viewer -> in the filter option "Web Server Protection") in the webadmin interface, and execute any action available to the webadmin of the firewall (e.g., creating a new user, enabling SSH, or adding an SSH authorized key). The WAF log page will execute the "User-Agent" parameter in the HTTP POST request.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.1, indicating it can be exploited remotely over the network with relatively low complexity though user interaction is required and does not require pre-existing privileges . The vulnerability impacts limited data confidentiality, limited integrity, for affected systems. Impacting 2 products from sophos, from sophos organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2018-01-12T17:29:01.070

Last Modified

2024-11-21T03:19:09.930

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 6.1 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-79

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	sophos	sfos	≤ 17.0	Yes
Hardware	sophos	xg_firewall	-	No
Operating System	sophos	sfos	17.0	Yes
Operating System	sophos	sfos	17.0	Yes
Operating System	sophos	sfos	17.0	Yes
Hardware	sophos	xg_firewall	-	No

References

http://seclists.org/fulldisclosure/2018/Jan/24 Mailing List, Third Party Advisory ([email protected])
https://blogs.securiteam.com/index.php/archives/3612 Exploit, Third Party Advisory ([email protected])
https://community.sophos.com/kb/en-us/128024 Vendor Advisory ([email protected])
https://community.sophos.com/products/xg-firewall/b/xg-blog/posts/sfos-17-0-3-mr3-released Vendor Advisory ([email protected])
http://seclists.org/fulldisclosure/2018/Jan/24 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://blogs.securiteam.com/index.php/archives/3612 Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://community.sophos.com/kb/en-us/128024 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://community.sophos.com/products/xg-firewall/b/xg-blog/posts/sfos-17-0-3-mr3-released Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For sophos's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.