CVE-2019-13266: tp-link archer_c2_v1_firmware

Vulnerability summary

CVE-2019-13266 is a high (CVSS 8.8) vulnerability in tp-link archer_c2_v1_firmware. EPSS estimates a 0.97% chance of exploitation in the next 30 days, higher than 61.6% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 27-08-2019
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

TP-Link Archer C3200 V1 and Archer C2 V1 devices have Insufficient Compartmentalization between a host network and a guest network that are established by the same device. A DHCP Request is sent to the router with a certain Transaction ID field. Following the DHCP protocol, the router responds with an ACK or NAK message. Studying the NAK case revealed that the router erroneously sends the NAK to both Host and Guest networks with the same Transaction ID as found in the DHCP Request. This allows encoding of data to be sent cross-router into the 32-bit Transaction ID field.

• CWE-669Incorrect Resource Transfer Between SpheresThe product does not properly transfer a resource/behavior to another sphere, or improperly imports a resource/behavior from another sphere, in a manner that provides unintended control over that resource.