CVE-2017-2773
Incomplete validation logic in JSON Web Token (JWT) libraries can allow unprivileged attackers to impersonate other users in multiple components included in PCF Elastic Runtime, aka an "Unauthenticated JWT signing algorithm in multiple components" issue.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in Pivotal PCF Elastic Runtime 1.6.x versions prior to 1.6.60, 1.7.x versions prior to 1.7.41, 1.8.x versions prior to 1.8.23, and 1.9.x versions prior to 1.9.1. Incomplete validation logic in JSON Web Token (JWT) libraries can allow unprivileged attackers to impersonate other users in multiple components included in PCF Elastic Runtime, aka an "Unauthenticated JWT signing algorithm in multiple components" issue.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.13% probability · 81th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- pivotal software/cloud foundry elastic runtime
- Source
- security_alert@emc.com
References
- http://www.securityfocus.com/bid/97135Third Party Advisory, VDB Entry
- https://pivotal.io/security/cve-2017-2773Mitigation, Vendor Advisory
- http://www.securityfocus.com/bid/97135Third Party Advisory, VDB Entry
- https://pivotal.io/security/cve-2017-2773Mitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.