CVE-2018-15382

A vulnerability in Cisco HyperFlex Software could allow an unauthenticated, remote attacker to generate valid, signed session tokens. The vulnerability is due to a static signing key that is present in all Cisco HyperFlex systems. An attacker could exploit this vulnerability by accessing the static signing key from one HyperFlex system and using it to generate valid, signed session tokens for another HyperFlex system. A successful exploit could allow the attacker to access the HyperFlex Web UI of a system for which they are not authorized.

• CWE-642
• CWE-642

• http://www.securityfocus.com/bid/105518Third Party Advisory, VDB Entry
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-hyperflex-secretVendor Advisory
• http://www.securityfocus.com/bid/105518Third Party Advisory, VDB Entry
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-hyperflex-secretVendor Advisory

Published

Oct 5, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2018-15376A vulnerability in the embedded test subsystem of Cisco IOS …
• CVE-2018-15377A vulnerability in the Cisco Network Plug and Play agent, al…8.6
• CVE-2018-15378A vulnerability in ClamAV versions prior to 0.100.2 could al…
• CVE-2018-15379A vulnerability in which the HTTP web server for Cisco Prime…
• CVE-2018-15380A vulnerability in the cluster service manager of Cisco Hype…8.8
• CVE-2018-15381A Java deserialization vulnerability in Cisco Unity Express …9.8
• CVE-2018-15383A vulnerability in the cryptographic hardware accelerator dr…7.5
• CVE-2018-15386A vulnerability in Cisco Digital Network Architecture (DNA) …9.8
• CVE-2018-15387A vulnerability in the Cisco SD-WAN Solution could allow an …9.8
• CVE-2018-15388A vulnerability in the WebVPN login process of Cisco Adaptiv…8.6
• CVE-2018-15389A vulnerability in the install function of Cisco Prime Colla…
• CVE-2018-1539IBM Rational Engineering Lifecycle Manager 5.0 through 5.02 …5.4