2024-07 Security Bulletin: Junos OS and Junos OS Evolved: Confidential information in logs can be accessed by another user (CVE-2024-39532)

Product Affected

This issue affects all versions of Junos OS and Junos OS Evolved on all platforms.

Severity

Medium

Severity Assessment (CVSS) Score

CVSS 3.1: 6.3 (CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N)

CVSS 4.0: 4.2 (CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N)

Problem

An Insertion of Sensitive Information into Log File vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows a local, authenticated attacker with high privileges to access sensitive information.

When another user performs a specific operation, sensitive information is stored as plain text in a specific log file, so that a high-privileged attacker has access to this information.

This issue affects:

Junos OS:

All versions before 21.2R3-S9;
21.4 versions before 21.4R3-S9;
22.2 versions before 22.2R2-S1, 22.2R3;
22.3 versions before 22.3R1-S1, 22.3R2;

Junos OS Evolved:

All versions before before 22.1R3-EVO;
22.2-EVO versions before 22.2R2-S1-EVO, 22.2R3-EVO;
22.3-EVO versions before 22.3R1-S1-EVO, 22.3R2-EVO.

Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

This issue was found during internal product security testing or research.

Solution

The following software releases have been updated to resolve this specific issue:
Junos OS: 21.2R3-S9, 21.4R3-S9, 22.2R2-S1, 22.2R3, 22.3R1-S1, 22.3R2, 22.4R1, and all subsequent releases.
Junos OS Evolved: 22.1R3-EVO, 22.2R2-S1-EVO, 22.2R3-EVO, 22.3R1-S1-EVO, 22.3R2-EVO, 22.4R1-EVO, and all subsequent releases.

This issue is being tracked as 1645119 which is visible on the Customer Support website.

Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of Engineering (EOE) or End of Life (EOL).

Workaround

There are no viable workarounds for this issue.

To reduce the risk of exploitation use access lists or firewall filters to limit access to the device only from trusted, administrative networks or hosts.

Severity Assessment

Information for how Juniper Networks uses CVSS can be found at KB 16446 [juniper.net] "Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories."

Modification History