ITM MacOS Agent Improper Certificate Validation

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• proofpoint insider threat managementbefore 7.14.3.69

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Proofpoint). Independent of NVD's CPE analysis and usually ahead of it.

• Proofpoint Insider Threat Management

  • up to and including 7.14.3affected · semverfixed in 7.14.3.69

Other highest-scoring records for the same primary product.

• CVE-2020-8884rcdsvc in the Proofpoint Insider Threat Management Windows Agent (formerly ObserveIT Windows Agent) before 7.9 allows remote authenticated u
  36Monitor
• CVE-2021-27900The Proofpoint Insider Threat Management Server (formerly ObserveIT Server) is missing an authorization check on several pages in the Web Co
  33Monitor
• CVE-2022-25294Proofpoint Insider Threat Management Agent for Windows relies on an inherently dangerous function that could enable an unprivileged local Wi
  31Monitor
• CVE-2021-22159Insider Threat Management Windows Agent Local Privilege Escalation Vulnerability The Proofpoint Insider Threat Management (formerly ObserveI
  31Monitor
• CVE-2021-27899The Proofpoint Insider Threat Management Agents (formerly ObserveIT Agent) for MacOS and Linux perform improper validation of the ITM Server
  29Monitor
• CVE-2021-22158The Proofpoint Insider Threat Management Server (formerly ObserveIT Server) is vulnerable to XML external entity (XXE) injection in the Web
  28Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

A certificate validation error is silently swallowed instead of terminating the connection. Often, code added for a test environment makes its way into production.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1override fun checkServerTrusted(chain: Array<X509Certificate>, type: String) {2  // Left empty for the test environment3}

1val client = OkHttpClient.Builder()2  .certificatePinner(3    CertificatePinner.Builder()4      .add("api.sirius.example", "sha256/…")5      .build()6  ).build()

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.