CVE Vulnerability

CVE-2020-12692

An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2 API doesn't have a signature TTL check for AWS Signature V4. An attacker can sniff the Authorization header, and then use it to reissue an OpenStack token an unlimited number of times.

5.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

Scope

5.4 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://www.openwall.com/lists/oss-security/2020/05/06/4 Mailing List Third Party Advisory
https://bugs.launchpad.net/keystone/+bug/1872737 Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/05/07/1 Mailing List Third Party Advisory
https://security.openstack.org/ossa/OSSA-2020-003.html Vendor Advisory
https://usn.ubuntu.com/4480-1/ Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:openstack:keystone:16.0.0:*:*:*:*:*:*:*
cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
Information

Published : 2020-05-07 12:15

Updated : 2022-04-27 02:49

NVD link : CVE-2020-12692

Mitre link : CVE-2020-12692

Products Affected
No products.
CWE
CWE-294

Authentication Bypass by Capture-replay

CWE-347

Improper Verification of Cryptographic Signature