Security readout for executives and security teams
Plain-English summary
CVE-2020-3464 is a stored XSS flaw in Cisco UCS Director’s web management interface. An attacker already holding administrative credentials could place malicious content in an interface field, potentially affecting another user who views it. Business risk is limited by the admin-credential requirement, but impact can include browser-based data exposure or interface actions in the victim’s session.
Executive priority
Treat this as a moderate-priority management-plane issue. It is unlikely to drive emergency action without evidence of exposed UCS Director access or compromised administrators, but affected systems should be checked and remediated during the next security maintenance cycle.
Technical view
Cisco describes improper input validation in UCS Director’s web-based management interface, classified as CWE-79. The CVSS 3.1 score is 4.8: network reachable, low attack complexity, high privileges required, user interaction required, changed scope, low confidentiality and integrity impact, and no availability impact.
Likely exposure
Exposure applies to environments running Cisco UCS Director. The source bundle does not identify affected or fixed versions beyond the product name, so inventory must be compared against Cisco’s advisory. Internet exposure is not stated; risk is most relevant where the management interface is accessible to administrators or compromised admin accounts.
Exploitation context
The provided sources do not show active exploitation, and the CVE is not listed as KEV. Exploitation requires administrative credentials on the affected device and a user interacting with the affected interface content. This makes it more of an insider, compromised-admin, or post-compromise risk than an unauthenticated perimeter issue.
Researcher notes
The source bundle lacks affected-version and fix-version detail. Keep analysis scoped to Cisco UCS Director and avoid broad Cisco UCS assumptions. The privilege requirement is high, user interaction is required, and the expected impact is limited to browser-context confidentiality and integrity effects.
Mitigation direction
- Review Cisco’s advisory for affected and fixed UCS Director releases.
- Apply Cisco-recommended updates or workarounds if your version is affected.
- Limit UCS Director administrative access to trusted users and management networks.
- Audit and remove unnecessary administrative accounts.
- Monitor for suspicious administrative changes in the web interface.
Validation and detection
- Confirm whether Cisco UCS Director is deployed in the environment.
- Record the installed UCS Director version and compare it with Cisco’s advisory.
- Identify who has administrative access to UCS Director.
- Review recent administrative interface changes for unexpected stored content.
- Do not assume unauthenticated scanning validates this issue.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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 lookupCVE-2020-3464 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
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 vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N1.72.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.8MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- 20200805 Cisco UCS Director Stored Cross-Site Scripting VulnerabilityCVE reference · vendor-advisory, x_refsource_CISCO
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.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
