A command injection vulnerability has been discovered in the D-Link DAP-X1860 range extender, allowing threat actors to execute remote code on affected devices. The CVE ID for this vulnerability has been given as CVE-2023-45208, and the severity is being analyzed.
This vulnerability exists in the Wi-Fi network scanning functionality, which threat actors can exploit. D-Link has not yet patched this vulnerability, nor did they respond to any comments regarding this issue.
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CVE-2023-45208 – Command Injection Vulnerability in D-Link
A threat actor can create a Wi-Fi network with a crafted SSID within the range of the extender and can execute commands during the setup process. Command injection was also possible when using the network scan function of the range extender.
The extender uses the “GetSiteSurvey” SOAP action to identify nearby networks. If any networks have an apostrophe(‘) on their SSID (for example, `Olaf’s Network`), the setup process crashes repeatedly with a response below.
| ———————————————————————— Error 500: Internal Server Error CGI program sent malformed HTTP headers: [0 1 ***** **:**:**:**:**:** WPA2PSK/AES 7 11b/g/n NONE In 17 YES NO 1 1 ***** **:**:**:**:**:** WPA2PSK/AES 24 11b/g/n NONE In 13 YES NO 2 1 ***** **:**:**:**:**:** WPA2PSK/AES 47 11b/g/n/ax NONE In 13 YES NO 3 1 ***** **:**:**:**:**:** WPAPSKWPA2PSK/TKIPAES 81 11b/g/n NONE In 7 YES NO 4 1 ***** **:**:**:**:**:** WPA2PSKWPA3PSK/AES 63 11b/g/n/ax NONE In 19 YES NO 5 1 ***** **:**:**:**:**:** WPA2PSK/AES 44 11b/g/n/ax NONE In 5 NO NO 6 1 Olafs Network **:**:**:**:**:** WPA2PSK/AES 47 11b/g/n/ax NONE In 20 NO NO sh: 7: not found sh ———————————————————————— |
This can be used for performing a denial-of-service attack on the extender. However, arbitrary command execution can be achieved by including commands on the SSID name, like `uname -a`, which results in the command being executed successfully.
| Error 500: Internal Server Error CGI program sent malformed HTTP headers: [0 1 ***** **:**:**:**:**:** WPA2PSK/AES 0 11b/g/n NONE In 17 YES NO 1 1 Test Linux dlink-rp 4.4.198 #3 SMP Mon Jan 11 10:38:51 CST 2021 mips GNU/Linux sh: **:**:**:**:**:**: not found sh: 2: not found sh: 3: not found sh: 4: not found […] sh: 40: not |
Red team-pen testing has published a complete report about this vulnerability, which provides detailed information about the Proof-of-concept, Security Risk, Timeline, and disclosure of this vulnerability.
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