Vulnerability identifier: #VU19578
Vulnerability risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-121
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
VxWorks
Operating systems & Components /
Operating system
Vendor: Wind River Systems, Inc.
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing IPv4 options. A remote unauthenticated attacker can send specially crafted network traffic to the affected system, trigger stack-based buffer overflow and execute arbitrary code on the target system or crash the tNet0 task.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Mitigation
Vulnerable software versions
VxWorks: 6.9 - 7
External links
http://ics-cert.us-cert.gov/advisories/icsa-19-211-01
http://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2019-12256
http://support2.windriver.com/index.php?page=security-notices&on=view&id=6652
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.