CVE-2024-2973

10.0 CRITICAL

📋 TL;DR

This CVE-2024-2973 is an authentication bypass vulnerability affecting Juniper Networks Session Smart Router, Session Smart Conductor, and WAN Assurance Router in high-availability redundant configurations. It allows network-based attackers to bypass authentication and gain full control of affected devices. Only systems running in redundant peer configurations are vulnerable.

💻 Affected Systems

Products:
  • Juniper Networks Session Smart Router
  • Juniper Networks Session Smart Conductor
  • Juniper Networks WAN Assurance Router
Versions: Session Smart Router/Conductor: All versions before 5.6.15, 6.0 before 6.1.9-lts, 6.2 before 6.2.5-sts. WAN Assurance Router: 6.0 before 6.1.9-lts, 6.2 before 6.2.5-sts.
Default Config Vulnerable: ✅ No
Notes: Only affects devices running in high-availability redundant configurations with a redundant peer. Standalone configurations are not vulnerable.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of network infrastructure devices, allowing attackers to intercept/modify traffic, deploy malware, or disrupt network operations.

🟠

Likely Case

Unauthorized administrative access leading to configuration changes, data exfiltration, or lateral movement within the network.

🟢

If Mitigated

Limited impact if devices are isolated, monitored, and have strict network access controls.

🌐 Internet-Facing: HIGH - Network-based attack vector means internet-facing devices are directly exploitable.
🏢 Internal Only: HIGH - Internal attackers or compromised internal systems can exploit this vulnerability.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Network-based attack requiring no authentication. CVSS 10.0 indicates trivial exploitation with maximum impact.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Session Smart Router/Conductor: 5.6.15, 6.1.9-lts, 6.2.5-sts. WAN Assurance Router: 6.1.9-lts, 6.2.5-sts.

Vendor Advisory: https://supportportal.juniper.net/JSA83126

Restart Required: Yes

Instructions:

1. Identify affected devices in redundant configurations. 2. Download appropriate patched version from Juniper support portal. 3. Apply patches following Juniper's upgrade procedures for HA environments. 4. Verify successful upgrade and functionality.

🔧 Temporary Workarounds

Disable Redundant Configuration

all

Convert affected devices to standalone mode to eliminate vulnerability.

Network Segmentation

all

Restrict network access to management interfaces of affected devices.

🧯 If You Can't Patch

  • Isolate affected devices from untrusted networks and implement strict access controls.
  • Implement enhanced monitoring and alerting for unauthorized configuration changes or access attempts.

🔍 How to Verify

Check if Vulnerable:

Check device configuration for redundant peer setup and compare version against affected ranges.

Check Version:

Use Juniper CLI commands specific to each product (e.g., 'show version' or equivalent).

Verify Fix Applied:

Verify device version is patched (5.6.15, 6.1.9-lts, or 6.2.5-sts or later) and test authentication mechanisms.

📡 Detection & Monitoring

Log Indicators:

  • Unexpected authentication events
  • Configuration changes from unauthorized sources
  • Access from unexpected IP addresses

Network Indicators:

  • Unusual traffic patterns to/from management interfaces
  • Authentication bypass attempts

SIEM Query:

Search for authentication events from non-standard sources or failed authentication followed by successful administrative actions.

🔗 References

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