Improper Verification of Cryptographic Signature in Spacewalk - CVE-2019-10136
Published: February 18, 2020
Vulnerability identifier: #VU25420
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-10136
CWE-ID: CWE-347
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Red Hat Inc.
Affected software:
Spacewalk
Spacewalk
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass signature validation process.
The vulnerability exists due to the affected software does not safely compute client token checksums. A remote attacker with a valid, but expired, authenticated set of headers can move some digits around, artificially extending the session validity without modifying the checksum.
How to mitigate CVE-2019-10136
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.