D-Link Routers – Directory Traversal
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. |