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exploit-db-mirror/exploits/hardware/webapps/45678.md
Offensive Security 36c084c351 DB: 2021-09-03 
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2021-09-03 13:39:06 +00:00

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Directory Traversal CVE: CVE-2018-10822

CVSS v3: 8.6 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Description: Directory traversal vulnerability in the web interface on D-Link routers:

DWR-116 through 1.06, DIR-140L through 1.02, DIR-640L through 1.02, DWR-512 through 2.02, DWR-712 through 2.02, DWR-912 through 2.02, DWR-921 through 2.02, DWR-111 through 1.01, and probably others with the same type of firmware allows remote attackers to read arbitrary files via a /.. or // after “GET /uir” in an HTTP request.

NOTE: this vulnerability exists because of an incorrect fix for CVE-2017-6190.

PoC:

$ curl http://routerip/uir//etc/passwd The vulnerability can be used retrieve administrative password using the other disclosed vulnerability - CVE-2018-10824.

This vulnerability was reported previously by Patryk Bogdan in CVE-2017-6190 but he reported it is fixed in certain release but unfortunately it is still present in even newer releases. The vulnerability is also present in other D-Link routers and can be exploited not only (as the original author stated) by double dot but also absolutely using double slash.