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CVE Record

CVE-2019-12162: Upwork Time Tracker 5.2.2.716 doesn't verify the SHA256 hash of the downloaded program update before runnin...

Upwork Time Tracker 5.2.2.716 doesn't verify the SHA256 hash of the downloaded program update before running it, which could lead to code execution or local privilege escalation by replacing the original update.exe.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This CVE concerns Upwork Time Tracker 5.2.2.716. Its updater may run a downloaded update without verifying the expected SHA256 hash. If an attacker can substitute the updater file, the result could be code execution or local privilege escalation. Public sources do not provide CVSS, patch details, or evidence of active exploitation.

Executive priority

Treat this as a targeted endpoint risk, not a confirmed widespread emergency. Prioritize environments where Upwork Time Tracker was deployed broadly or where users have elevated local privileges.

Technical view

The issue is an update integrity failure: the client does not validate the SHA256 digest of the downloaded program update before execution. The CVE description says replacement of update.exe could lead to code execution or local privilege escalation. Affected scope beyond Upwork Time Tracker 5.2.2.716 is not established in the provided sources.

Likely exposure

Exposure is most likely on endpoints running Upwork Time Tracker 5.2.2.716, especially where users can install or run desktop client updates. No server-side or cloud exposure is described in the sources.

Exploitation context

The CVE is not listed as KEV, and the provided sources do not cite active exploitation. The described risk depends on an attacker being able to replace or influence the update executable before it runs.

Researcher notes

The public record is sparse: no CVSS, CWE, detailed affected CPEs, patch version, or exploit evidence is included. Analysis should stay anchored to the named product version and updater integrity failure.

Mitigation direction

  • Identify and remove Upwork Time Tracker 5.2.2.716 where present.
  • Check Upwork support guidance for fixed or supported client versions.
  • Restrict local write access to application update locations.
  • Use endpoint controls to monitor unexpected updater execution.
  • Prioritize managed software distribution over user-run updates.

Validation and detection

  • Inventory endpoints for Upwork Time Tracker 5.2.2.716.
  • Confirm installed client versions against vendor guidance.
  • Review endpoint logs for unusual updater activity.
  • Check whether update paths are writable by standard users.
  • Document any compensating endpoint controls in place.
Prepared
Confidence
medium
Sources
4

Public sources used

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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2019-12162 mapping review

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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.