RCE in Easycorp Zentao
CVE-2021-27556
The Cron job tab in EasyCorp ZenTao 12.5.3 allows remote attackers (who have admin access) to execute arbitrary code by setting the type parameter to System.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.040 (90.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.040 · newest: 0.040 · change: 0.000
Affected products
- Easycorp Zentao — versions 12.5.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- privasec.com/blog/zentao-cms-a-monkeys-journey-to-priv-esc-remote-code-executio… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27556?
- CVE-2021-27556 is a high-severity vulnerability in Easycorp Zentao, classified under OS Command Injection. CVSS score: 7.2/10. Published 2021-08-31.
- How severe is CVE-2021-27556?
- High severity. CVSS v3 base score is 7.2 out of 10.
- Is CVE-2021-27556 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.