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CVE Record

CVE-2018-19443: The client in Tryton 5.x before 5.0.1 tries to make a connection to the bus in cleartext instead of encrypt...

The client in Tryton 5.x before 5.0.1 tries to make a connection to the bus in cleartext instead of encrypted under certain circumstances in bus.py and jsonrpc.py. This connection attempt fails, but it contains in the header the current session of the user. This session could then be stolen by a man-in-the-middle.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Tryton 5.x clients before 5.0.1 could briefly send a user session header over an unencrypted connection attempt. Even though the connection fails, someone positioned on the network could capture the session and impersonate the user.

Executive priority

Prioritize remediation if Tryton clients are used on untrusted or interceptable networks. The issue is session theft, not direct code execution, but compromised sessions can still create business-impacting unauthorized access.

Technical view

In Tryton client 5.x before 5.0.1, bus.py and jsonrpc.py attempted a cleartext bus connection under certain circumstances. The failed request still included the current user session in headers, creating a session disclosure risk to a man-in-the-middle attacker.

Likely exposure

Exposure is limited to environments using Tryton 5.x clients before 5.0.1, especially across untrusted networks, shared Wi-Fi, proxies, or other paths where traffic could be intercepted.

Exploitation context

The bundle does not show KEV listing or public active exploitation evidence. Exploitation requires a man-in-the-middle position able to observe the failed cleartext connection attempt and capture the session header.

Researcher notes

The source data lacks CVSS, CWE, CPEs, and details for the “certain circumstances” trigger. The key confirmed behavior is session header exposure during a failed cleartext bus connection attempt in affected Tryton clients.

Mitigation direction

  • Upgrade affected Tryton 5.x clients to 5.0.1 or later.
  • Review the Tryton security release and issue7792 guidance.
  • Terminate active sessions after upgrade where exposure is plausible.
  • Prefer trusted encrypted networks until affected clients are remediated.

Validation and detection

  • Inventory Tryton client versions and identify any 5.x clients before 5.0.1.
  • Confirm bus and JSON-RPC traffic no longer attempts cleartext connections.
  • Review network architecture for paths where interception is plausible.
  • Check authentication logs for unusual session reuse around exposure windows.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.