Vulnerability in Tenable Nessus Agent
CVE-2021-20077
Nessus Agent versions 7.2.0 through 8.2.2 were found to inadvertently capture the IAM role security token on the local host during initial linking of the Nessus Agent when installed on an Amazon EC2 instance. This could allow a privileged attacker to obtain the token.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (25.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Tenable Nessus Agent
- Tenable Nessus Agent — versions 7.2.0 through 8.2.2
Public proof-of-concept exploits
References
- www.tenable.com/security/tns-2021-04-0 (Patch, Vendor Advisory)
- www.tenable.com/security/tns-2021-07 (Not Applicable, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-20077?
- CVE-2021-20077 is a medium-severity vulnerability in Tenable Nessus Agent. CVSS score: 6.7/10. Published 2021-03-19.
- How severe is CVE-2021-20077?
- Medium severity. CVSS v3 base score is 6.7 out of 10.
- Is CVE-2021-20077 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.