CVE-2017-14948 Memory corruption in n/a

Critical 9.8 Published 14 Oct 2019 Updated 5 Aug 2024

Remote attackers can execute arbitrary code on D-Link routers via a buffer overflow in the fileaccess.cgi component triggered by a crafted HTTP request.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2017-14948?

CVE-2017-14948 is a critical memory corruption vulnerability in n/a, published on 14 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Certain D-Link products are affected by: Buffer Overflow. This affects DIR-880L 1.08B04 and DIR-895 L/R 1.13b03. The impact is: execute arbitrary code (remote). The component is: htdocs/fileaccess.cgi. The attack vector is: A crafted HTTP request handled by fileacces.cgi could allow an attacker to mount a ROP attack: if the HTTP header field CONTENT_TYPE starts with ''boundary=' followed by more than 256 characters, a buffer overflow would be triggered, potentially causing code execution.

Weakness: CWE-120

Which versions are affected by CVE-2017-14948?

It affects 6 products.

Products include Dlink Dir-868l Firmware, Dlink Dir-880l Firmware, Dlink Dir-885l Firmware, Dlink Dir-890l Firmware, Dlink Dir-895l Firmware, Dlink Dir-895r Firmware.

How do I fix CVE-2017-14948?

No fix has been published for CVE-2017-14948 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2017-14948 being exploited?

There is no known exploitation of CVE-2017-14948 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-6447-8xgh-93jm.