PT-2018-4959 · D Link · D-Link Dir-895L/R+8

Pedro Ribeiro · Published 2018-07-13 · Updated 2019-10-09 · CVE-2016-6563

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions D-Link DIR routers, including DIR-823, DIR-822, DIR-818L(W), DIR-895L, DIR-890L, DIR-885L, DIR-880L, DIR-868L, and DIR-850L (affected versions not specified)

Description The issue arises when processing malformed SOAP messages during the HNAP Login action, leading to a buffer overflow in the stack. The vulnerable XML fields within the SOAP body are: Action, Username, LoginPassword, and Captcha.

Recommendations For all affected D-Link DIR router models, consider disabling the HNAP Login action until a patch is available. Restrict access to the vulnerable XML fields Action, Username, LoginPassword, and Captcha to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-121

CWE-119

Related Identifiers

CVE-2016-6563

Affected Products

D-Link Dir-818Lw

D-Link Dir-822

D-Link Dir-823G

D-Link Dir-850L

D-Link Dir-868L

D-Link Dir-880L

D-Link Dir-885L

D-Link Dir-890L

D-Link Dir-895L/R

References · 6

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/dlink_hnap_login_bof.rb · Exploit
• 🔥 http://seclists.org/fulldisclosure/2016/Nov/38 · Exploit
• 🔥 https://exploit-db.com/exploits/40805 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2016-6563 · Security Note
• http://securityfocus.com/bid/94130 · Note
• https://kb.cert.org/vuls/id/677427 · Note