cbcvebase.
CVE-2014-6436
published 2018-01-12

CVE-2014-6436: Aztech ADSL DSL5018EN (1T1R), DSL705E, and DSL705EU devices improperly manage sessions, which allows remote attackers to bypass authentication in opportunistic…

PriorityP279critical9.8CVSS 3.0
AVNACLPRNUINSUCHIHAH
EXPLOIT
EPSS
42.13%
98.5th percentile
Aztech ADSL DSL5018EN (1T1R), DSL705E, and DSL705EU devices improperly manage sessions, which allows remote attackers to bypass authentication in opportunistic circumstances and execute arbitrary commands with administrator privileges by leveraging an existing web portal login.

Detection & IOCsextracted from sources · hover to see the quote

path/cgi-bin/admAccess.asp↗
urlhttp://<HOST>/cgi-bin/admAccess.asp↗
commandPOST /cgi-bin/admAccess.asp HTTP/1.1↗
commandsaveFlag=1&adminFlag=1&SaveBtn=SAVE&uiViewTools_Password=<NEWPASS>&uiViewTools_PasswordConfirm=<NEWPASS>&uiViewTools_Password1=<NEWPASS>&uiViewTools_PasswordConfirm1=<NEWPASS>↗
  • →Alert on POST requests to /cgi-bin/admAccess.asp that include both uiViewTools_Password and uiViewTools_Password1 fields, as this is the specific parameter pattern used by the exploit payload for password reset. ↗
  • →Monitor for the exploit's characteristic User-Agent string (iPad/iOS 6.0 Safari) combined with requests to /cgi-bin/admAccess.asp, as the PoC hardcodes this specific UA. ↗
  • ·The exploit targets devices on the local network (LAN-side attack); detection should be scoped to internal/LAN traffic monitoring rather than perimeter/WAN inspection. ↗
  • ·The Content-Length header in the PoC is hardcoded to 179, which may not match the actual payload length when a different password is used; detection rules relying solely on Content-Length: 179 may miss variants. ↗
  • ·Affected device models are DSL5018EN(1T1R), DSL705E, and DSL705EU; detections should be scoped to environments where these specific Aztech modem/router models are deployed. ↗

CVSS provenance

nvdv3.09.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.010.0CRITICALAV:N/AC:L/Au:N/C:C/I:C/A:C
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