Description
On all versions of BIG-IP 12.1.x and 11.6.x, the original TLS protocol includes a weakness in the master secret negotiation that is mitigated by the Extended Master Secret (EMS) extension defined in RFC 7627. TLS connections that do not use EMS are vulnerable to man-in-the-middle attacks during renegotiation. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
Published: 2021-02-12
Score: 4.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2021-10099 On all versions of BIG-IP 12.1.x and 11.6.x, the original TLS protocol includes a weakness in the master secret negotiation that is mitigated by the Extended Master Secret (EMS) extension defined in RFC 7627. TLS connections that do not use EMS are vulnerable to man-in-the-middle attacks during renegotiation. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
History

No history.

Subscriptions

F5 Big-ip Access Policy Manager Big-ip Advanced Firewall Manager Big-ip Advanced Web Application Firewall Big-ip Analytics Big-ip Application Acceleration Manager Big-ip Application Security Manager Big-ip Ddos Hybrid Defender Big-ip Domain Name System Big-ip Fraud Protection Service Big-ip Global Traffic Manager Big-ip Link Controller Big-ip Local Traffic Manager Big-ip Policy Enforcement Manager Big-ip Ssl Orchestrator
cve-icon MITRE

Status: PUBLISHED

Assigner: f5

Published:

Updated: 2024-08-03T18:58:26.095Z

Reserved: 2021-01-06T00:00:00.000Z

Link: CVE-2021-22981

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-02-12T18:15:12.797

Modified: 2024-11-21T05:51:03.760

Link: CVE-2021-22981

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses