Use of insufficiently random values in uIP and Contiki OS - CVE-2020-27634
Published: February 10, 2021
Vulnerability identifier: #VU50598
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-27634
CWE-ID: CWE-330
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the ISN generator is initialized with a constant value and has constant increments. A remote attacker can interfere with traffic, spoof the connection and gain access to sensitive information.
Affected software
uIP
Contiki OS
Contiki OS
How to mitigate CVE-2020-27634
Install updates from vendor's website.