CVE-2021-3317 EXPLOIT
8.8
HIGH · CVSS 3.1 · EPSS 41.4% (pctl 99)
Patch early
A public exploit exists.
Description
KLog Server through 2.4.1 allows authenticated command injection. async.php calls shell_exec() on the original value of the source parameter.
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 41.39% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-78 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2021-01-26 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| klogserver | klog server |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Klog Server 2.4.1 - Command Injection (Authenticated) | 2021-02-01 |
References
- http://packetstormsecurity.com/files/161208/Klog-Server-2.4.1-Command-Injection.html
- https://docs.unsafe-inline.com/0day/klog-server-authenticated-command-injection
- http://packetstormsecurity.com/files/161208/Klog-Server-2.4.1-Command-Injection.html
- https://docs.unsafe-inline.com/0day/klog-server-authenticated-command-injection
→ the Explorer · watch your stack · NVD