CVE-2024-39532
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceA local, authenticated attacker with high privileges can access sensitive information that is stored as plaintext in a specific log file when another user performs a certain operation. The vulnerability stems from improper handling of sensitive data in Junos OS logging mechanisms, allowing unauthorized access to confidential information through log file inspection.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 21.2= 21.2= 21.4= 22.2= 22.3= 22.1= 22.2= 22.3CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- High
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the Junos OS versionRun 'show version' or 'version' command to obtain the installed Junos OS versionAffected if The installed version matches < 21.2, = 21.2, = 21.4, = 22.2, = 22.3 for Junos OS; or = 22.1, = 22.2, = 22.3 for Junos OS Evolved
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Locate system log filesAccess the /var/log directory and list log files using 'ls -la /var/log/' or via the CLI 'file list /var/log'Affected if Log files exist that may contain sensitive operational data
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Examine log file permissionsRun 'ls -la' on specific log files to verify ownership and permissions. Check if unprivileged users can read log filesAffected if Log files are readable by users other than the root or admin account, indicating overly permissive access controls
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Search log files for plaintext sensitive dataGrep through log files for patterns that may indicate sensitive information such as passwords, keys, or credentials using 'grep -i sensitive /var/log/filename' or review recent log entries around operations handling confidential dataAffected if Sensitive information such as passwords, keys, or credentials are found stored in plaintext within log files
A system is affected if it runs a Junos OS or Junos OS Evolved version matching the affected ranges AND contains log files with plaintext sensitive data accessible due to improper access controls.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped21.2
Apply the vendor-supplied Junos OS patches (21.2R3-S9, 21.4R3-S9, 22.2R2-S1/22.2R3, 22.3R1-S1/22.3R2 or later for OS; 22.1R3-EVO, 22.2R2-S1-EVO/22.2R3-EVO, 22.3R1-S1-EVO/22.3R2-EVO or later for OS Evolved) to remediate. In the interim, restrict access to log files and monitor for unauthorized privileged account usage.
Junos OS: 21.2R3-S9, 21.4R3-S9, 22.2R2-S1/22.2R3, 22.3R1-S1/22.3R2 or later | Junos OS Evolved: 22.1R3-EVO, 22.2R2-S1-EVO/22.2R3-EVO, 22.3R1-S1-EVO/22.3R2-EVO or later
- 1. Identify the current Junos OS or Junos OS Evolved version installed using 'show version' command
- 2. Determine the appropriate upgrade path based on current version branch (21.2, 21.4, 22.2, 22.3 for Junos OS or 22.1, 22.2, 22.3 for Junos OS Evolved)
- 3. Download the fixed maintenance release from Juniper Networks support portal (supportportal.juniper.net)
- 4. Upload the Junos upgrade package to the device using 'file copy' or USB media
- 5. For Junos OS: Execute 'request system software add <package>' with appropriate options; For Junos OS Evolved: Use 'request system software evolve' or individual package installation
- 6. Reboot the device after upgrade using 'request system reboot'
- 7. Verify the new version is installed and the vulnerability is patched using 'show version'
- 8. Confirm sensitive information is no longer being written to log files in plain text
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-39532 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-39532 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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