ZDI-22-1499: D-Link DIR-1935 SetIPv6FirewallSettings IPv6FirewallRule Command Injection Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-1935 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of SetIPv6FirewallSettings requests to the web management portal. When parsing subelements within the IPv6FirewallRule element, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| D-Link DIR-1935 Firmware |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-22-1499?
ZDI-22-1499 is classified as a high-severity vulnerability due to its potential for remote code execution.
How do I fix ZDI-22-1499?
To fix ZDI-22-1499, update your D-Link DIR-1935 router to the latest firmware version provided by D-Link.
Who is affected by ZDI-22-1499?
Anyone using D-Link DIR-1935 routers is potentially affected by the ZDI-22-1499 vulnerability.
Can ZDI-22-1499 be exploited remotely?
Yes, ZDI-22-1499 can be exploited by network-adjacent attackers, although authentication is needed.
What kind of attacks can ZDI-22-1499 facilitate?
ZDI-22-1499 can facilitate arbitrary code execution on vulnerable D-Link DIR-1935 routers.
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