D-Link patches vid storage units

Remote access and attack vulns

D-Link has issued patches for a pair of its network video recorders after a Qualys analysis identified remote authentication bypass vulnerabilities.

The DNR-322L and DNR-326 recorders are midrange 4TB recorders which among other things can be used as recorders for the company's IP cameras. As reported by PC World, Qualys also identified information disclosure and denial-of-service vulnerabilities.

An attacker could also perform a remote admin password reset on vulnerable systems, and push firmware into the machines without authentication.

The patches were issued by D-Link mid-July after Qualys notified the company of the vulnerabilities. The DNR-322L firmware patch is here, and the DNR-326 patch is here.

Qualys' Bharat Jogi presented the vulnerabilities to the BSides Las Vegas conference. He told PC World that the Shodan search engine can locate “16,000 D-Link NAS and NVR devices connected to the Internet.”

The number of DNR-322L and DNR-326 devices (the units subject to the Qualys-discovered vuln) El Reg was able to find on Shodan is far more modest: fewer than 200. However, it comes as no surprise that other NVRs might also have vulnerabilities, or that there may be units exposed to the Internet but still carrying their out-of-the-box passwords. ®