ISE SOHO Vulnerability Catalog Published - Independent Security ...

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Belkin F5D8236-‐4 v2 Vulnerability: Cross-‐Site Request Forgery CVE: CVE-2013-3083 Description The Belkin F5D8236-4 v2 router is susceptible to several Cross-Site Request Forgery attacks, which allows an attacker to forge HTML forms and execute actions on behalf of the target user. ISE created a proof of concept that when executed by an unsuspecting user changes the administrator settings and enables remote web management services. Attack Requirements ♦ The victim must follow a link crafted by an attacker (e.g., by clicking the link directly, or through some other mechanism such as redirection from a malicious site). ♦ The victim must have administrator permissions to render and execute the forged HTTP. ♦ Authentication is required for exploitation. Details ♦ All HTML forms present in the Belkin F5D8236-4 v2 are susceptible to Cross- Site Request Forgery. ♦ Other firmware versions were not tested and could be vulnerable. Impact If an unauthenticated remote attacker is able to fool an authenticated user into clicking a malicious link, the attacker is able to launch an attack that has the capability to compromise the router. Recommendations to the Vendor ♦ Including an unpredictable token in each HTTP request submitted to the web server can prevent Cross-Site Request Forgery. At a minimum, these tokens should be unique to each user, but it is recommended that each HTML form contain unique tokens. ♦ In addition to HTML form tokens, HTTP referrer checking should be enabled. ♦ Additional information for vendors regarding immediate and long term fixes for these issues can be found here: http://www.securityevaluators.com/content/casestudies/routers/#recommendationsVendors 82
Solution ♦ There currently is not a solution to this problem. ♦ Restrict access to WAN services such as remote management to prevent an attacker from gaining access if an attack is successful. Proof of Concept Exploit Belkin F5D8236-‐4 v2 CSRF -‐ Enable Remote MGMT. function BeLkIn() {document.belkin.submit();}; window.setTimeout(BeLkIn, 0000); Disclosure Timeline ♦ 2/11/2013 - Notified Belkin ♦ 4/15/2013 - Public Disclosure *In between the initial notification and the public disclosure, ISE reached out to Belkin multiple times requesting that our vulnerabilities were escalated to the proper support team. References ♦ Advisory/Video: http://infosec42.blogspot.com ♦ http://securityevaluators.com/content/case-studies/ Credit ♦ Discovered By: Jacob Holcomb – Security Analyst @ Independent Security Evaluators ♦ Exploited By: Jacob Holcomb – Security Analyst @ Independent Security Evaluators 83
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Vulnerability Catalog Revision 1 SO
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Vulnerability: Cross-‐Site Sc
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Summary ISE has performed extensiv
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Solution ♦ There currently is not
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♦ Advisory/Video: http://infosec4
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TRENDnet TEW-‐812DRU Vulnerab
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Disclosure Timeline ♦ 4/11/2013
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Vulnerability: Multiple Buffer O
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JavaScript or HTML code in the vict
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♦ There currently is not a soluti
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} function _enable23(){ document
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TRENDnet TEW-691GR and TEW-692GR
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Proof of Concept Exploit TP-
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Details ♦ The router will need to
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♦ 3/20/2013 - Contacted TP-Link
Page 31 and 32: Netgear WNDR4700 Vulnerability:
Page 33 and 34: all files stored on the external st
Page 35 and 36: References ♦ Advisory/Video: http
Page 37 and 38: Attack Requirements ♦ The attacke
Page 39 and 40: Figure 2 - WNDR4700 XSS #1 39
Page 41 and 42: Figure 4 -‐ WNDR4700 XSS #
Page 43 and 44: Linksys WRT310v2 Vulnerability:
Page 45 and 46: function PwN() {doc
Page 47 and 48: ♦ Advisory/Video: http://infosec4
Page 49 and 50: Figure 7 - EA6500 Malicious Co
Page 51 and 52: Solution ♦ There is no solution t
Page 53 and 54: Figure 9 - EA6500 DOM XSS Disc
Page 55 and 56: Content-‐Type: application/jso
Page 57 and 58: D-‐Link DIR-‐865L Vulnera
Page 59 and 60: document.DLINK.submit() Disc
Page 61 and 62: Description The D-Link DIR-865L rou
Page 63 and 64: ♦ Additional information for vend
Page 65 and 66: ♦ 7/26/2013 - Public Disclosure R
Page 67 and 68: these issues can be found here: htt
Page 69 and 70: ♦ Validate HTTP Basic Authenticat
Page 71 and 72: Vulnerability: Authentication Byp
Page 73 and 74: Impact If an unauthenticated attack
Page 75 and 76: these issues can be found here: htt
Page 77 and 78: attacker from gaining access if an
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Page 91 and 92: studies/routers/#recommendationsVen
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Page 97 and 98: # The ASUS RT-‐AC66U contai
Page 99 and 100: try: print """ [*] Attempting
Page 101 and 102: Disclosure Timeline ♦ 7/26/2013 -
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