PT-2019-15167 · Jnoj · Jiangnan Online Judge

Published 2019-10-10 · Updated 2019-10-11 · CVE-2019-17491

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Jiangnan Online Judge (aka jnoj) version 0.8.0

Description The issue concerns a security problem where an attacker can execute malicious scripts. This is possible due to the lack of proper input validation in the Problem[description] parameter. The vulnerable API endpoints are "web/admin/problem/create" and "web/polygon/problem/update".

Recommendations For version 0.8.0, as a temporary workaround, consider restricting access to the Problem[description] parameter in the affected API endpoints until a patch is available. Avoid using the Problem[description] parameter in the "web/admin/problem/create" and "web/polygon/problem/update" endpoints until the issue is resolved.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2019-17491

Affected Products

Jiangnan Online Judge

References · 3

• 🔥 https://github.com/shi-yang/jnoj/issues/51 · Exploit
• https://osv.dev/vulnerability/CVE-2019-17491 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-17491 · Security Note