Security readout for executives and security teams
Plain-English summary
CVE-2020-3335 lets a logged-in local user read sensitive information belonging to other users on an affected Cisco device. The business risk is data exposure inside infrastructure management systems, not remote takeover. Impact depends on who can log in locally and what sensitive data is stored there.
Executive priority
Treat this as a moderate-priority infrastructure confidentiality issue. Prioritize faster if the platform stores regulated, customer, or administrative secrets, or if many users have local access.
Technical view
The issue is an authorization weakness in Cisco Application Services Engine Software key store handling. With valid local credentials, a low-privileged attacker could access other users' sensitive information. The CVSS 3.0 score is 5.5, driven by local access, low privileges, no interaction, and high confidentiality impact.
Likely exposure
Exposure is most likely where Cisco APIC or related Cisco Application Services Engine environments allow multiple local users or weak account governance. The bundle does not provide affected version details.
Exploitation context
The source bundle does not indicate active exploitation, and CISA KEV is false. Exploitation requires valid credentials and local access to an affected device, which reduces broad internet-scale risk but matters in shared or compromised administrative environments.
Researcher notes
Evidence is limited to the CVE metadata and Cisco advisory reference. Version data is not provided in the bundle. Do not assume remote exploitability, integrity impact, availability impact, or active exploitation without additional vendor evidence.
Mitigation direction
- Identify Cisco APIC or Application Services Engine deployments.
- Review Cisco's advisory for affected releases and vendor guidance.
- Restrict local access to trusted administrators only.
- Audit local accounts and remove unnecessary credentials.
- Monitor for suspicious local logins or sensitive data access.
Validation and detection
- Inventory affected Cisco management platforms and software versions.
- Confirm whether local user accounts exist beyond trusted administrators.
- Check Cisco advisory status for fixes or workarounds.
- Review logs for unexpected local authentication activity.
- Document compensating controls if vendor remediation is pending.
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-306: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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-2020-3335 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
- 5.5 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N1.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
5.5MediumVector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- 20200603 Cisco Application Services Engine Software Authorization 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.
Missing Authentication for Critical Function
Missing Authentication for Critical Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.