Vulnerability in Sangoma Freepbx
CVE-2021-45461
FreePBX, when restapps (aka Rest Phone Apps) 15.0.19.87, 15.0.19.88, 16.0.18.40, or 16.0.18.41 is installed, allows remote attackers to execute arbitrary code, as exploited in the wild in December 2021. The fixed versions are 15.0.20 and 16.0.19.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.217 (97.6th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.217 · newest: 0.217 · change: 0.000
Affected products
- Sangoma Freepbx
- Sangoma Pbxact
- Sangoma Restapps — versions 15.0.19.87, 15.0.19.88, 16.0.18.40
Public proof-of-concept exploits
References
- community.freepbx.org/t/0-day-freepbx-exploit/80092 (Exploit, Issue Tracking, Vendor Advisory)
- community.freepbx.org/t/security-issue-potential-rest-phone-apps-rce/80109 (Vendor Advisory)
- wiki.freepbx.org/display/FOP/2021-12-21+SECURITY:+Potential+Rest+Phone+Apps+RCE (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-45461?
- CVE-2021-45461 is a critical-severity vulnerability in Sangoma Freepbx. CVSS score: 9.8/10. Published 2021-12-22.
- How severe is CVE-2021-45461?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-45461 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.