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CVE Record

CVE-2020-3242: Cisco UCS Director Information Disclosure Vulnerability

A vulnerability in the REST API of Cisco UCS Director could allow an authenticated, remote attacker with administrative privileges to obtain confidential information from an affected device. The vulnerability exists because confidential information is returned as part of an API response. An attacker could exploit this vulnerability by sending a crafted request to the API. A successful exploit could allow the attacker to obtain the API key of another user, which would allow the attacker to impersonate the account of that user on the affected device. To exploit this vulnerability, the attacker must have administrative privileges on the device.

MediumCVSS 4.9Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Cisco UCS Director can expose confidential account information through its REST API. The issue matters because an already privileged administrator could obtain another user’s API key and impersonate that user inside the affected management system.

Executive priority

Treat this as a moderate-priority management-plane issue. It is not shown as actively exploited, but it can compromise trust between privileged accounts and should be remediated during normal security maintenance.

Technical view

CVE-2020-3242 is a CWE-200 information disclosure flaw in Cisco UCS Director REST API responses. Exploitation requires authenticated remote access with administrative privileges. Successful exploitation can disclose another user’s API key, enabling account impersonation on the affected device.

Likely exposure

Exposure is limited to environments running affected Cisco UCS Director or Cisco Unified Computing System management software where administrative API access is reachable. The provided sources do not identify affected versions.

Exploitation context

The provided bundle does not show active exploitation, and the CVE is not listed as KEV. Attack prerequisites are significant because the attacker must already have administrative privileges on the device.

Researcher notes

Evidence supports information disclosure through REST API responses, high confidentiality impact, and no integrity or availability impact. Key unknowns from the bundle are exact affected versions, fixed releases, and any vendor-provided workaround details.

Mitigation direction

  • Review Cisco’s advisory for affected releases and vendor-approved fixes.
  • Limit UCS Director administrative REST API access to trusted management networks.
  • Audit administrator accounts and remove unnecessary elevated access.
  • Rotate API keys if unauthorized disclosure is suspected.
  • Monitor for unusual administrative API activity or account impersonation.

Validation and detection

  • Inventory Cisco UCS Director and UCS management software deployments.
  • Confirm whether any deployed version is covered by Cisco’s advisory.
  • Review administrative API exposure and network access controls.
  • Check audit logs for unusual administrator API activity.
  • Verify API keys have been rotated after suspected exposure.
Prepared
Confidence
high
Sources
3

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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-200: Information exposure and cloud metadata lookup

Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2020-3242 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.9 (3.0)
Known Exploited
No
Published

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

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
4.9CVSS 3.0MediumCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N1.23.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.9Medium
CVSS 3.0 vector shape for CVE-2020-3242Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
CiscoCisco Unified Computing System (Management Software)n/aListed
Weakness

CWE details

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

CWE-200 · source CWE mapping

Exposure of Sensitive Information to an Unauthorized Actor

Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.