PT-2017-14581 · B3Log · B3Log Symphony

Published 2017-11-15 · Updated 2020-07-28 · CVE-2017-16821

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions b3log Symphony (aka Sym) version 2.2.0

Description The issue concerns a problem where a crafted X-Forwarded-For HTTP header is mishandled, leading to XSS in the admin console. This occurs during the display of a client IP address in the /admin/user/userid endpoint.

Recommendations For version 2.2.0, consider restricting access to the /admin/user/userid endpoint until a fix is available, and avoid using the X-Forwarded-For HTTP header in the admin console to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2017-16821

Affected Products

B3Log Symphony

References · 3

• 🔥❌ https://github.com/b3log/symphony/issues/503 · Exploit, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2017-16821 · Security Note
• https://osv.dev/vulnerability/CVE-2017-16821 · Vendor Advisory