A vulnerability, which was classified as critical, has been found in Wind River VxWorks up to 7. This issue affects an unknown functionality of the component ipdhcpc DHCP Client. The manipulation with an unknown input leads to a argument injection vulnerability. Using CWE to declare the problem leads to CWE-88. The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Wind River VxWorks 6.6, 6.7, 6.8, 6.9.3, 6.9.4, and Vx7 has Incorrect Access Control in IPv4 assignment by the ?ipdhcpc DHCP client component.

The weakness was released 08/05/2019 as CVE-2019-12264 as confirmed advisory (Website). It is possible to read the advisory at support2.windriver.com. The identification of this vulnerability is CVE-2019-12264 since 05/21/2019. The exploitation is known to be easy. The attack can only be done within the local network. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK. The advisory points out:

The VxWorks DHCP client fails to properly validate that the offered IP-address in a DHCP renewal or offer response contains a valid unicast address. An attacker may assign multicast or broadcast addresses to the victim.

Upgrading eliminates this vulnerability.

Entry connected to this vulnerability is available at 140065.

Productinfo

Vendor

• Wind River

Name

• VxWorks

Version

• 6.6
• 6.7
• 6.8
• 6.9.3
• 6.9.4
• 7

License

• commercial

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Discussion