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CVE Record

CVE-2020-2745: Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Federation).

Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Federation). Supported versions that are affected are 11.1.2.3.0 and 12.2.1.3.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Access Manager. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Access Manager. CVSS 3.0 Base Score 4.3 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L).

MediumCVSS 4.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Oracle Access Manager Federation has a medium-severity flaw that can let an unauthenticated HTTP attacker partially disrupt the service, but only with user interaction. The published impact is availability degradation, not data theft or integrity compromise.

Executive priority

Handle through the normal vulnerability remediation cycle, with faster action for internet-facing or business-critical identity services. The documented impact is partial service disruption, but identity outages can still affect login-dependent operations.

Technical view

Affected Oracle Access Manager versions are 11.1.2.3.0 and 12.2.1.3.0. CVSS 3.0 is 4.3: network attack vector, low complexity, no privileges, required user interaction, unchanged scope, and low availability impact only.

Likely exposure

Exposure is most likely where Oracle Access Manager Federation on the affected versions is reachable over HTTP, especially for externally accessible identity or federation workflows. The source bundle does not provide CPEs or broader affected product versions.

Exploitation context

The source bundle does not show active exploitation, and the CVE is not marked KEV. Oracle describes it as easily exploitable over HTTP, but successful attack requires human interaction and results only in partial denial of service.

Researcher notes

Evidence is limited to the CVE record and Oracle CPU reference. No CWE, workaround, exploit evidence, or detailed technical root cause is provided in the bundle, so validation should focus on affected version, Federation use, exposure, and patch status.

Mitigation direction

  • Identify Oracle Access Manager Federation deployments and confirm exact versions.
  • Review Oracle April 2020 Critical Patch Update guidance for CVE-2020-2745.
  • Apply the relevant Oracle-supported patch or upgrade path.
  • Limit HTTP exposure to trusted networks where operationally possible.
  • Monitor Oracle Access Manager availability during remediation.

Validation and detection

  • Confirm whether versions 11.1.2.3.0 or 12.2.1.3.0 are present.
  • Verify the Federation component is deployed or enabled.
  • Check whether OAM HTTP endpoints are externally reachable.
  • Confirm Oracle CPU patch status against April 2020 guidance.
  • Review logs for unexplained OAM availability disruptions.
Prepared
Confidence
high
Sources
3

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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CVE-2020-2745 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.3 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4.3CVSS 3.0MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L2.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.3Medium
CVSS 3.0 vector shape for CVE-2020-2745Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Oracle CorporationAccess Manager11.1.2.3.0, 12.2.1.3.0Listed
Weakness

CWE details

No CWE listed

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