CVE-2023-45145 Redis Unix-domain socket may have be exposed with the wrong permissions for a short time window.

2023-10-1820:17:08

CWE-668

GitHub_M

www.cve.org

cve-2023-45145

redis

unix-domain socket

permissions

race condition

upgrade

umask

version 7.2.2

version 7.0.14

version 6.2.14

workaround

CVSS3

3.6

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

AI Score

4.4

Confidence

High

EPSS

Percentile

10.5%

JSON

Redis is an in-memory database that persists on disk. On startup, Redis begins listening on a Unix socket before adjusting its permissions to the user-provided configuration. If a permissive umask(2) is used, this creates a race condition that enables, during a short period of time, another process to establish an otherwise unauthorized connection. This problem has existed since Redis 2.6.0-RC1. This issue has been addressed in Redis versions 7.2.2, 7.0.14 and 6.2.14. Users are advised to upgrade. For users unable to upgrade, it is possible to work around the problem by disabling Unix sockets, starting Redis with a restrictive umask, or storing the Unix socket file in a protected directory.

CNA Affected

[
  {
    "vendor": "redis",
    "product": "redis",
    "versions": [
      {
        "version": ">= 2.6.0-rc1, < 6.2.14",
        "status": "affected"
      },
      {
        "version": ">= 7.0.0, < 7.0.14",
        "status": "affected"
      },
      {
        "version": ">= 7.1.0, < 7.2.2",
        "status": "affected"
      }
    ]
  }
]