Privilege escalation in Eleveo Call Recording
CVE-2019-18822
A privilege escalation vulnerability in ZOOM Call Recording 6.3.1 allows its user account (i.e., the account under which the program runs - by default, the callrec account) to elevate privileges to root by abusing the callrec-rs@.service. The callrec-rs@.service starts the /opt/callrec/bin/rs binary with root privileges, and this binary is owned by callrec. It can be replaced by a Trojan horse.
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.014 (70.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 70.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Eleveo Call Recording — versions 6.3.1
Weakness classification (CWE)
References
- www.zoomint.com/solutions/call-recording (Product)
- github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-18822-PrivEscal-ZoomC… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-18822?
- CVE-2019-18822 is a high-severity vulnerability in Eleveo Call Recording, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2020-04-14.
- How severe is CVE-2019-18822?
- High severity. CVSS v3 base score is 8.8 out of 10.