CVE-2021-20077
Last modified
CVE-2021-20077 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. 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.. EPSS estimates a 0.35% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Tenable | Nessus Agent | >= 7.2.0, < 8.2.3 |
References
- https://www.tenable.com/security/tns-2021-04-0Patch, Vendor Advisory
- https://www.tenable.com/security/tns-2021-04-0Patch, Vendor Advisory
- https://www.tenable.com/security/tns-2021-04-0Patch, Vendor Advisory
- https://www.tenable.com/security/tns-2021-04-0Patch, Vendor Advisory
- https://www.tenable.com/security/tns-2021-07Not Applicable, Vendor Advisory
- https://www.tenable.com/security/tns-2021-04-0Patch, Vendor Advisory
- https://www.tenable.com/security/tns-2021-04-0Patch, Vendor Advisory
- https://www.tenable.com/security/tns-2021-04-0Patch, Vendor Advisory
- https://www.tenable.com/security/tns-2021-04-0Patch, Vendor Advisory
- https://www.tenable.com/security/tns-2021-07Not Applicable, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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