Vulnerability Name:

CCN-4599

Published:2000-05-30
Updated:2000-05-30
Summary:The TACACS+ authentication protocol could allow an attacker to determine the length of certain user passwords. Sequence numbers and packet types are transmitted in plaintext, allowing an attacker to identify the username and password fields being transmitted. An attacker can then determine the length of the fields from the size of the packets, because no padding is used to obscure the length of the data fields.
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Consequences:Bypass Security
References:Source: CCN
Type: Openwall Security Advisory OW-001-tac_plus
An Analysis of the TACACS+ Protocol and its Implementations

Source: XF
Type: UNKNOWN
tacacsplus-padding(4599)

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/o:cisco:ios:*:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:tacacs+:f4.0.3alpha:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:tacacs+:f4.0.2alpha:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco ios *
    cisco tacacs+ f4.0.3alpha
    cisco tacacs+ f4.0.2alpha