Input validation error in VxWorks - CVE-2022-38767

Vulnerability identifier: #VU73707

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-38767

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input during the IP Radius access procedure. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

VxWorks
SIPROTEC 5 7SJ85 (CP300)
SIPROTEC 5 7UM85 (CP300)
SIPROTEC 5 7UT85 (CP300)
SIPROTEC 5 7SX85 (CP300)
SIPROTEC 5 7ST86 (CP300)
SIPROTEC 5 7UT86 (CP300)
SIPROTEC 5 7ST85 (CP300)
SIPROTEC 5 7SS85 (CP300)
SIPROTEC 5 7UT87 (CP300)
SIPROTEC 5 7SL87 (CP300)
SIPROTEC 5 7SL86 (CP300)
SIPROTEC 5 7VE85 (CP300)
SIPROTEC 5 7SK85 (CP300)
SIPROTEC 5 7SJ86 (CP300)
SIPROTEC 5 7VK87 (CP300)
SIPROTEC 5 7SD87 (CP300)
SIPROTEC 5 6MD85 (CP300)
SIPROTEC 5 6MD86 (CP300)
SIPROTEC 5 7SD86 (CP300)
SIPROTEC 5 Compact 7SX800 (CP050)
SIPROTEC 5 7SA87 (CP300)
SIPROTEC 5 Communication Module ETH-BB-2FO
SIPROTEC 5 7SA86 (CP300)
SIPROTEC 5 6MD89 (CP300)
SIPROTEC 5 Communication Module ETH-BA-2EL
SIPROTEC 5 7KE85 (CP300)
SIPROTEC 5 Communication Module ETH-BD-2FO
SIPROTEC 5 6MU85 (CP300)

Install updates from vendor's website.

VxWorks - addressed in versions 6.9.4.12 RCPL6, 22.09
SIPROTEC 5 7SJ85 (CP300) - update to 9.30
SIPROTEC 5 7UM85 (CP300) - update to 9.30
SIPROTEC 5 7UT85 (CP300) - update to 9.30
SIPROTEC 5 7SX85 (CP300) - update to 9.30
SIPROTEC 5 7ST86 (CP300) - update to 9.30
SIPROTEC 5 7UT86 (CP300) - update to 9.30
SIPROTEC 5 7ST85 (CP300) - update to 9.30
SIPROTEC 5 7SS85 (CP300) - update to 9.30
SIPROTEC 5 7UT87 (CP300) - update to 9.30
SIPROTEC 5 7SL87 (CP300) - update to 9.30
SIPROTEC 5 7SL86 (CP300) - update to 9.30
SIPROTEC 5 7VE85 (CP300) - update to 9.30
SIPROTEC 5 7SK85 (CP300) - update to 9.30
SIPROTEC 5 7SJ86 (CP300) - update to 9.30
SIPROTEC 5 7VK87 (CP300) - update to 9.30
SIPROTEC 5 7SD87 (CP300) - update to 9.30
SIPROTEC 5 6MD85 (CP300) - update to 9.30
SIPROTEC 5 6MD86 (CP300) - update to 9.30
SIPROTEC 5 7SD86 (CP300) - update to 9.30
SIPROTEC 5 Compact 7SX800 (CP050) - update to 9.30
SIPROTEC 5 7SA87 (CP300) - update to 9.30
SIPROTEC 5 Communication Module ETH-BB-2FO - update to 9.30
SIPROTEC 5 7SA86 (CP300) - update to 9.30
SIPROTEC 5 Communication Module ETH-BA-2EL - update to 9.30
SIPROTEC 5 7KE85 (CP300) - update to 9.30
SIPROTEC 5 Communication Module ETH-BD-2FO - update to 9.30
SIPROTEC 5 6MU85 (CP300) - update to 9.30

• https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2022-38767
• https://windriver.com

• Denial of service in Wind River VxWorks
• Denial of service in Siemens SIPROTEC 5 Devices