ID CVE-2017-6896
Summary Privilege escalation vulnerability on the DIGISOL DG-HR1400 1.00.02 wireless router enables an attacker to escalate from user privilege to admin privilege just by modifying the Base64-encoded session cookie value.
Vulnerable Configurations
  • cpe:2.3:o:digisol:dg-hr1400_router_firmware:1.00.02:*:*:*:*:*:*:*
  • cpe:2.3:h:digisol:dg-hr1400_router:-:*:*:*:*:*:*:*
Base: 6.5 (as of 03-10-2019 - 00:03)
  • Manipulating Opaque Client-based Data Tokens
    In circumstances where an application holds important data client-side in tokens (cookies, URLs, data files, and so forth) that data can be manipulated. If client or server-side application components reinterpret that data as authentication tokens or data (such as store item pricing or wallet information) then even opaquely manipulating that data may bear fruit for an Attacker. In this pattern an attacker undermines the assumption that client side tokens have been adequately protected from tampering through use of encryption or obfuscation.
  • Accessing/Intercepting/Modifying HTTP Cookies
    This attack relies on the use of HTTP Cookies to store credentials, state information and other critical data on client systems. There are several different forms of this attack. The first form of this attack involves accessing HTTP Cookies to mine for potentially sensitive data contained therein. The second form involves intercepting this data as it is transmitted from client to server. This intercepted information is then used by the adversary to impersonate the remote user/session. The third form is when the cookie's content is modified by the adversary before it is sent back to the server. Here the adversary seeks to convince the target server to operate on this falsified information.
  • Session Credential Falsification through Manipulation
    An attacker manipulates an existing credential in order to gain access to a target application. Session credentials allow users to identify themselves to a service after an initial authentication without needing to resend the authentication information (usually a username and password) with every message. An attacker may be able to manipulate a credential sniffed from an existing connection in order to gain access to a target server. For example, a credential in the form of a web cookie might have a field that indicates the access rights of a user. By manually tweaking this cookie, a user might be able to increase their access rights to the server. Alternately an attacker may be able to manipulate an existing credential to appear as a different user. This attack differs from falsification through prediction in that the user bases their modified credentials off existing credentials instead of using patterns detected in prior credentials to create a new credential that is accepted because it fits the pattern. As a result, an attacker may be able to impersonate other users or elevate their permissions to a targeted service.
cvss-vector via4 AV:N/AC:L/Au:S/C:P/I:P/A:P
refmap via4
exploit-db 41633
Last major update 03-10-2019 - 00:03
Published 14-03-2017 - 20:59
Last modified 03-10-2019 - 00:03
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