CVE-2020-17505 in the critical feed json
Artica Web Proxy 4.30.000000 allows an authenticated remote attacker to inject commands via the service-cmds parameter in cyrus.php.
published 2020-08-12 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-9453
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 82.4%
- EPSS 82.4% chance of exploitation in 30 days, percentile 99.6%
- public exploits
- 1
- Metasploit, plus a Nuclei check
Summary
Artica Web Proxy 4.30.000000 allows an authenticated remote attacker to inject commands via the service-cmds parameter in cyrus.php. These commands are executed with root privileges via service_cmds_peform.
Timeline
- First public exploit (Metasploit exploit/linux/http/artica_proxy_auth_bypass_service_cmds_peform_command_injection)
- Published
Exploit prediction
82.37% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit exploit/linux/http/artica_proxy_auth_bypass_service_cmds_peform_command_injection Artica proxy 4.30.000000 Auth Bypass service-cmds-peform Command Injection metasploit exploit, excellent rank, 2020-08-09
- Nuclei template Artica Web Proxy 4.30 - OS Command Injection nuclei detection template
- blog.max0x4141.com https://blog.max0x4141.com/post/artica_proxy/ referenced PoC, tagged "exploit" by a source, unverified
- packetstormsecurity.com http://packetstormsecurity.com/files/159267/Artica-Proxy-4.30.000000-Authentication-Bypass-Command-Injection.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
blog.max0x4141.com
/post/artica_proxy/
exploit, third-party-advisory
-
packetstormsecurity.com
/files/159267/Artica-Proxy-4.30.000000-Authentication-Bypass-Command-Injection.html
exploit, third-party-advisory, vdb-entry
Sources
- CVE List CVE-2020-17505
- NVD CVE-2020-17505
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.