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cvelistJuniperCVELIST:CVE-2024-30397
HistoryApr 12, 2024 - 3:25 p.m.

CVE-2024-30397 Junos OS: An invalid certificate causes a Denial of Service in the Internet Key Exchange (IKE) process

2024-04-1215:25:54
CWE-754
juniper
www.cve.org
1
cve-2024-30397
juniper networks
public key infrastructure
cpu utilization
certificate verification
vpn negotiations
version 20.4r3-s10
version 21.2r3-s7
version 21.4r3-s5
version 22.1r3-s4
version 22.2r3-s3
version 22.3r3-s1
version 22.4r3
version 23.2r1-s2
version 23.2r2

7.5 High

CVSS3

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

0.0005 Low

EPSS

Percentile

16.8%

An Improper Check for Unusual or Exceptional Conditions vulnerability in the the Public Key Infrastructure daemon (pkid) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause Denial of Service (DoS).

The pkid is responsible for the certificate verification. Upon a failed verification, the pkid uses all CPU resources and becomes unresponsive to future verification attempts. This means that all subsequent VPN negotiations depending on certificate verification will fail.

This CPU utilization of pkid can be checked using this command:
  root@srx> show system processes extensive | match pkid
  xxxxx  root  103  0  846M  136M  CPU1  1 569:00 100.00% pkid

This issue affects:
Juniper Networks Junos OS

  • All versions prior to 20.4R3-S10;
  • 21.2 versions prior to 21.2R3-S7;
  • 21.4 versions prior to 21.4R3-S5;
  • 22.1 versions prior to 22.1R3-S4;
  • 22.2 versions prior to 22.2R3-S3;
  • 22.3 versions prior to 22.3R3-S1;
  • 22.4 versions prior to 22.4R3;
  • 23.2 versions prior to 23.2R1-S2, 23.2R2.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "20.4R3-S10",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThan": "21.2R3-S7",
        "status": "affected",
        "version": "21.2",
        "versionType": "semver"
      },
      {
        "lessThan": "21.4R3-S5",
        "status": "affected",
        "version": "21.4",
        "versionType": "semver"
      },
      {
        "lessThan": "22.1R3-S4",
        "status": "affected",
        "version": "22.1",
        "versionType": "semver"
      },
      {
        "lessThan": "22.2R3-S3",
        "status": "affected",
        "version": "22.2",
        "versionType": "semver"
      },
      {
        "lessThan": "22.3R3-S1",
        "status": "affected",
        "version": "22.3",
        "versionType": "semver"
      },
      {
        "lessThan": "22.4R3",
        "status": "affected",
        "version": "22.4",
        "versionType": "semver"
      },
      {
        "lessThan": "23.2R1-S2, 23.2R2",
        "status": "affected",
        "version": "23.2",
        "versionType": "semver"
      }
    ]
  }
]

7.5 High

CVSS3

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

0.0005 Low

EPSS

Percentile

16.8%

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