Processing malformed SOAP messages when performing the HNAP Login action causes a buffer overflow in the stack in some D-Link DIR routers. The vulnerable XML fields within the SOAP body are: Action, Username, LoginPassword, and Captcha. The following products are affected: DIR-823, DIR-822, DIR-818L(W), DIR-895L, DIR-890L, DIR-885L, DIR-880L, DIR-868L, and DIR-850L.
Published 2018-07-13 20:29:01
Updated 2019-10-09 23:19:16
Source CERT/CC
View at NVD,   CVE.org
Vulnerability category: Overflow

Exploit prediction scoring system (EPSS) score for CVE-2016-6563

96.69%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 100 %
Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2016-6563

  • Dlink DIR Routers Unauthenticated HNAP Login Stack Buffer Overflow
    Disclosure Date: 2016-11-07
    First seen: 2020-04-26
    exploit/linux/http/dlink_hnap_login_bof
    Several Dlink routers contain a pre-authentication stack buffer overflow vulnerability, which is exposed on the LAN interface on port 80. This vulnerability affects the HNAP SOAP protocol, which accepts arbitrarily long strings into certain XML parameters and then copies the

CVSS scores for CVE-2016-6563

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
10.0
HIGH AV:N/AC:L/Au:N/C:C/I:C/A:C
10.0
10.0
NIST
9.8
CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST

CWE ids for CVE-2016-6563

  • The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
    Assigned by: nvd@nist.gov (Primary)
  • A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
    Assigned by: cret@cert.org (Secondary)

References for CVE-2016-6563

Products affected by CVE-2016-6563

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