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ASUS RT-‐AC66U <strong>Vulnerability</strong>: Cross-‐Site Request Forgery CVE: CVE-2013-3093 Description The ASUS RT-AC66U 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. <strong>ISE</strong> created a proof of concept that when executed by an unsuspecting user, changes the administrator credentials, enables remote management, and gives the attacker reverse-shell access to the router. Attack Requirements ♦ The victim must have an active web application session on their ASUS router. ♦ 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 the necessary permissions to render and execute the forged HTTP. Details All HTML forms present in the ASUS RT-AC66U are susceptible to Cross-Site Request Forgery. 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 92
Solution ♦ There is no solution to this problem. ♦ DO NOT STAY LOGGED INTO THE ROUTER'S MANAGEMENT INTERFACE. ♦ 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 ASUS Multi Model CSRF function CSRF1() {document.ASUS.submit();}; window.setTimeout(CSRF1,1000); Disclosure Timeline 93
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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
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Netgear WNDR4700 Vulnerability:
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all files stored on the external st
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References ♦ Advisory/Video: http
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Attack Requirements ♦ The attacke
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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 81 and 82: attacker from gaining access if an
Page 83 and 84: Solution ♦ There currently is not
Page 85 and 86: Disclosure Timeline ♦ 2/11/2013 -
Page 87 and 88: var bEncPassword=1; var auto_che
Page 89 and 90: Solution ♦ There is no solution t
Page 91: studies/routers/#recommendationsVen
Page 95 and 96: studies/routers/#recommendationsVen
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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