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F5VULNRICHMENT:CVE-2024-21849

HistoryFeb 14, 2024 - 4:30 p.m.

CVE-2024-21849 BIG-IP Websockets vulnerability

2024-02-1416:30:21

CWE-466

github.com

cve-2024-21849

big-ip

websockets

tmm process

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.8

Confidence

Low

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

When an Advanced WAF/ASM security policy and a Websockets profile are configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CNA Affected

[
  {
    "vendor": "F5",
    "modules": [
      "Advanced WAF",
      "ASM"
    ],
    "product": "BIG-IP",
    "versions": [
      {
        "status": "unaffected",
        "version": "17.1.0",
        "lessThan": "*",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "16.1.0",
        "lessThan": "16.1.4",
        "versionType": "custom"
      },
      {
        "status": "unaffected",
        "version": "15.1.0",
        "lessThan": "*",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unknown"
  }
]

References

my.f5.com/manage/s/article/K000135873

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.8

Confidence

Low

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

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