CVE-2025-68701

7.5 HIGH

📋 TL;DR

Jervis versions before 2.2 use deterministic AES initialization vectors derived from passphrases, making encrypted data vulnerable to cryptographic attacks. This affects organizations using Jervis for Jenkins pipeline automation where sensitive data is encrypted. Attackers could potentially decrypt protected configuration data or secrets.

💻 Affected Systems

Products:
  • Jervis
Versions: All versions before 2.2
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects systems where Jervis is used to encrypt sensitive data. The vulnerability exists in the cryptographic implementation itself.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers decrypt all encrypted pipeline secrets and configurations, gaining access to credentials, API keys, and sensitive deployment data, leading to complete system compromise.

🟠

Likely Case

Attackers with access to encrypted data can perform offline analysis to decrypt some sensitive information over time, potentially exposing credentials or configuration secrets.

🟢

If Mitigated

With proper network segmentation and limited access to encrypted data stores, impact is limited to data that attackers can already access through other means.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires access to encrypted data and knowledge of cryptographic attacks against deterministic IVs. No public exploit code has been identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.2

Vendor Advisory: https://github.com/samrocketman/jervis/security/advisories/GHSA-crxp-chh4-9ghp

Restart Required: No

Instructions:

1. Update Jervis to version 2.2 or later. 2. Re-encrypt any data encrypted with vulnerable versions using the updated library. 3. Rotate any secrets that may have been exposed through vulnerable encryption.

🔧 Temporary Workarounds

Use external secret management

all

Store sensitive data in external secret management systems instead of relying on Jervis encryption

Disable Jervis encryption features

all

Configure pipelines to avoid using Jervis encryption capabilities until patched

🧯 If You Can't Patch

  • Isolate systems using vulnerable Jervis versions from internet access
  • Implement strict access controls to limit who can view encrypted data stores

🔍 How to Verify

Check if Vulnerable:

Check Jervis version in Jenkins pipeline configuration or library dependencies. Versions before 2.2 are vulnerable.

Check Version:

Check Jenkins pipeline scripts or library configuration for Jervis version specification

Verify Fix Applied:

Verify Jervis version is 2.2 or later and that newly encrypted data uses proper cryptographic random IVs.

📡 Detection & Monitoring

Log Indicators:

  • Failed decryption attempts
  • Unusual access patterns to encrypted configuration files

Network Indicators:

  • Unusual data exfiltration from Jenkins servers
  • Traffic to cryptographic analysis tools

SIEM Query:

source="jenkins" AND ("jervis" OR "encryption" OR "decryption") AND severity>=medium

🔗 References

📤 Share & Export