CWE-294 使用捕获-重放进行的认证绕过

Authentication Bypass by Capture-replay

结构: Simple

Abstraction: Base

状态: Incomplete

被利用可能性: High


A capture-replay flaw exists when the design of the software makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).


Capture-replay attacks are common and can be difficult to defeat without cryptography. They are a subset of network injection attacks that rely on observing previously-sent valid commands, then changing them slightly if necessary and resending the same commands to the server.


  • cwe_Nature: ChildOf cwe_CWE_ID: 287 cwe_View_ID: 1000 cwe_Ordinal: Primary

  • cwe_Nature: ChildOf cwe_CWE_ID: 287 cwe_View_ID: 1003 cwe_Ordinal: Primary

  • cwe_Nature: ChildOf cwe_CWE_ID: 287 cwe_View_ID: 699 cwe_Ordinal: Primary


Language: {'cwe_Class': 'Language-Independent', 'cwe_Prevalence': 'Undetermined'}


范围 影响 注释
Access Control Gain Privileges or Assume Identity Messages sent with a capture-relay attack allow access to resources which are not otherwise accessible without proper authentication.


Architecture and Design


Utilize some sequence or time stamping functionality along with a checksum which takes this into account in order to ensure that messages can be parsed only once.

Architecture and Design


Since any attacker who can listen to traffic can see sequence numbers, it is necessary to sign messages with some kind of cryptography to ensure that sequence numbers are not simply doctored along with content.


标识 说明 链接
CVE-2005-3435 product authentication succeeds if user-provided MD5 hash matches the hash in its database; this can be subjected to replay attacks.
CVE-2007-4961 Chain: cleartext transmission of the MD5 hash of password (CWE-319) enables attacks against a server that is susceptible to replay (CWE-294).


映射的分类名 ImNode ID Fit Mapped Node Name
PLOVER Authentication bypass by replay
CLASP Capture-replay


  • CAPEC-102
  • CAPEC-60
  • CAPEC-94