CVE-2023-48643: инжекция

Описание

Оригинално описание

Shrubbery tac_plus 2.x, 3.x. and 4.x through F4.0.4.28 allows unauthenticated Remote Command Execution. The product allows users to configure authorization checks as shell commands through the tac_plus.cfg configuration file. These are executed when a client sends an authorization request with a username that has pre-authorization directives configured. However, it is possible to inject additional commands into these checks because strings from TACACS+ packets are used as command-line arguments. If the installation lacks a a pre-shared secret (there is no pre-shared secret by default), then the injection can be triggered without authentication. (The attacker needs to know a username configured to use a pre-authorization command.) NOTE: this is related to CVE-2023-45239 but the issue is in the original Shrubbery product, not Meta's fork.

Засегнати продукти

• n/a n/a: n/a
• shrubbery: още 3 продукта, добавени от shrubbery

  tac_plus_2x, tac_plus_3x, tac_plus_4x

Вид слабост

• CWE-94 Неправилен контрол при генериране на код

История

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2023-48643
• https://nvd.nist.gov/vuln/detail/CVE-2023-48643
• https://github.com/takeshixx/tac_plus-pre-auth-rce