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9.9
CVE-2018-16367: OnlineJudge 2.0 can write files to any location
CVE-2018-16367 · published 8 years ago
Summary
The sandbox in OnlineJudge 2.0 does not correctly limit where files can be created, letting a user place a file anywhere on the system, such as writing a directory list to /tmp. This can be abused to expose the contents of other files using include tricks. Update to the latest version or apply the vendor's patch to restore proper file‑write restrictions.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| qduoj | onlinejudge |
2.0 cpe:2.3:a:qduoj:onlinejudge:2.0:*:*:*:*:*:*:* |
Original advisory text
In OnlineJudge 2.0, the sandbox has an incorrect access control vulnerability that can write a file anywhere. A user can write a directory listing to /tmp, and can leak file data with a #include.
In OnlineJudge 2.0, the sandbox has an incorrect access control vulnerability that can write a file anywhere. A user can write a directory listing to /tmp, and can leak file data with a #include.
References
- https://github.com/QingdaoU/OnlineJudge/issues/165 Exploit Issue Tracking Third Party Advisory
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker full control (estimated)
Type
CWE-22Path Traversal
Timeline
Published2 Sep 2018
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2018-16367 · NVD
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