D-Link DIR routers contain a stack-based buffer overflow in the HNAP Login action
CVE-2016-6563

9.8CRITICAL

Key Information:

Vendor

D-link
Status
Dir-823
Dir-822
Dir-818l(w)
Dir-895l
Vendor
CVE Published:
13 July 2018

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 84%

What is CVE-2016-6563?

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.

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Deploy the Patch

Affected Version(s)

DIR-818L(W)

DIR-822

DIR-823

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

Metasploit exploit module for CVE-2016-6563
Created by Rapid7

References

https://www.exploit-db.com/exploits/40805/
exploitx_refsource_EXPLOIT-DB
https://www.kb.cert.org/vuls/id/677427
third-party-advisoryx_refsource_CERT-VN
http://www.securityfocus.com/bid/94130
vdb-entryx_refsource_BID

EPSS Score

84% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability Reserved

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