Improper Verification of Cryptographic Signature in Spacewalk - CVE-2019-10136
Published: February 18, 2020
Vulnerability identifier: #VU25420
CSH Severity: Medium
CVSS v4: 5.3 [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]
CVE-ID: CVE-2019-10136
CWE-ID: CWE-347
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Spacewalk
Red Hat Satellite
spacewalk-backend (Red Hat package)
Red Hat Satellite
spacewalk-backend (Red Hat package)
How to mitigate CVE-2019-10136
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
spacewalk-backend (Red Hat package) - update to 2.5.3-177.el6sat