Jiangnan Online Judge - Directory Traversal (CVE-2019-17538)
Description
Jiangnan Online Judge (aka jnoj) 0.8.0 has Directory Traversal for file reading via the web/polygon/problem/viewfile?id=1&name=../ substring.
psychologyCrowdSec Analysis
CVE-2019-17538 is a directory traversal vulnerability in Jiangnan Online Judge that allows attackers to read arbitrary files on the server by abusing path traversal in file view requests.
CrowdSec has been tracking this vulnerability and its exploits since 16th of May 2024.
Insights from the CrowdSec network reveal that the attackers trying to exploit CVE-2019-17538 are composed of a fairly even mix of opportunistic and targeted actors. Some attackers employ preliminary reconnaissance, while others use indiscriminate scanning. Data from the CrowdSec community also indicates a gradual decrease in attacks targeting CVE-2019-17538. While still present in the wild, exploitation levels have dropped noticeably week-over-week. This may signal that the vulnerability is becoming less relevant or that defenses are improving fast enough for attackers to lose interest.
Observed attack attempts target URLs containing /jnoj/web/polygon/problem/viewfile and leverage traversal patterns to gain unauthorized file access.
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| Event | Date |
|---|---|
| CVE Published | 2019-10-13 |
| Rule Released | 2024-05-16 |
| CrowdSec First Seen | 2024-11-23 |