CVE-2018-5371 — diag_ping

diag_ping.cmd on D-Link DSL-2640U devices with firmware IM_1.00 and ME_1.00, and DSL-2540U devices with firmware ME_1.00, allows authenticated remote attackers to execute arbitrary OS commands via shell metacharacters in the ipaddr field of an HTTP GET request.

01What is this vulnerability?

diag_ping.cmd on D-Link DSL-2640U devices with firmware IM_1.00 and ME_1.00, and DSL-2540U devices with firmware ME_1.00, allows authenticated remote attackers to execute arbitrary OS commands via shell metacharacters in the ipaddr field of an HTTP GET request.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2018-01-12T09:00:00.000Z
• Last modified: 2024-08-05T05:33:44.179Z

09References

• www.iplantom.com — https://www.iplantom.com/2018/01/10/dsl2640U/