Security readout for executives and security teams
Plain-English summary
CVE-2019-0996 is a spoofing issue in Microsoft Azure DevOps Server 2019. A malicious page could trick a signed-in user into authorizing an application registration they did not intend. Business impact is mainly unauthorized app registration and OAuth protection bypass, not direct server takeover based on the provided sources.
Executive priority
Handle as a targeted identity and application-trust risk for Azure DevOps Server environments. Prioritize patch verification if the product is present, but urgency is lower than internet-wormable or known-exploited issues based on the supplied evidence.
Technical view
Azure DevOps Server improperly handled requests used to authorize application registrations, creating a cross-site request forgery condition. Successful exploitation could bypass OAuth protections and register an application as the targeted user. The Microsoft update changes how Azure DevOps Server protects application registration requests.
Likely exposure
Exposure is limited to organizations running Azure DevOps Server 2019. The provided affected data lists version 0, but no detailed build matrix, CVSS score, or deployment-specific conditions are included in the bundle.
Exploitation context
The sources describe social engineering: an attacker must host a crafted page and convince a targeted user to click a link. The bundle does not state active exploitation, and CISA KEV status is false.
Researcher notes
Key missing evidence includes CVSS scoring, CWE assignment, exact vulnerable builds, and public exploit confirmation. Analysis should stay anchored to the MSRC description: CSRF in application authorization handling leading to OAuth protection bypass and unintended application registration.
Mitigation direction
- Identify any Azure DevOps Server 2019 deployments.
- Apply the Microsoft update for CVE-2019-0996 where applicable.
- Review Microsoft guidance for supported servicing details.
- Treat unexpected application authorization prompts as suspicious until remediated.
Validation and detection
- Confirm product and version against Microsoft CVE-2019-0996 guidance.
- Verify the relevant Azure DevOps Server update is installed.
- Review application registrations for unexpected entries.
- Check whether affected users reported suspicious authorization links.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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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CVE-2019-0996 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- Azure DevOps Server Spoofing VulnerabilityCVE reference · vendor-advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0996CVE reference · x_refsource_MISC, x_transferred
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.