CVE-2020-35729 EXPLOIT
9.8
CRITICAL · CVSS 3.1 · EPSS 88.1% (pctl 100)
Patch early
A public exploit exists.
Description
KLog Server 2.4.1 allows OS command injection via shell metacharacters in the actions/authenticate.php user parameter.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 88.1% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-78 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2020-12-27 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| klogserver | klog server |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Klog Server 2.4.1 - Unauthenticated Command Injection (Metasploit) | 2021-01-25 |
| exploit-db | Klog Server 2.4.1 - Command Injection (Unauthenticated) | 2021-01-05 |
References
- http://packetstormsecurity.com/files/160798/Klog-Server-2.4.1-Command-Injection.html
- http://packetstormsecurity.com/files/161123/Klog-Server-2.4.1-Command-Injection.html
- http://packetstormsecurity.com/files/161410/Klog-Server-2.4.1-Command-Injection.html
- https://github.com/mustgundogdu/Research/blob/main/KLOG_SERVER/Exploit_Code
- https://github.com/mustgundogdu/Research/blob/main/KLOG_SERVER/README.md
- http://packetstormsecurity.com/files/160798/Klog-Server-2.4.1-Command-Injection.html
- http://packetstormsecurity.com/files/161123/Klog-Server-2.4.1-Command-Injection.html
- http://packetstormsecurity.com/files/161410/Klog-Server-2.4.1-Command-Injection.html
- https://github.com/mustgundogdu/Research/blob/main/KLOG_SERVER/Exploit_Code
- https://github.com/mustgundogdu/Research/blob/main/KLOG_SERVER/README.md
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