Security readout for executives and security teams
Plain-English summary
Cisco DNA Center had a high-severity information disclosure flaw that could let an unauthenticated remote attacker obtain sensitive device information, including configuration files. The main business risk is exposure of network management data that could support later compromise, not direct system takeover based on the provided sources.
Executive priority
Treat this as a high-priority network management exposure issue. It can reveal sensitive configuration data, which may increase the risk of follow-on attacks against network infrastructure.
Technical view
CVE-2020-3411 is a CWE-200 issue in Cisco DNA Center caused by improper handling of authentication tokens. The CVSS 3.0 score is 7.5, with network attack vector, low complexity, no privileges, no user interaction, and high confidentiality impact only.
Likely exposure
Exposure is most relevant to organizations running Cisco DNA Center, especially where its web interface is reachable from untrusted networks. The provided bundle does not specify affected or fixed versions.
Exploitation context
The sources describe exploitation through a crafted HTTP request by an unauthenticated remote attacker. The bundle does not indicate CISA KEV listing or active exploitation in the wild.
Researcher notes
Evidence supports unauthenticated remote information disclosure with confidentiality impact. The source bundle lacks version-specific applicability, fixed-release details, proof-of-concept status, and exploitation telemetry, so validation should start with Cisco’s advisory.
Mitigation direction
- Review Cisco’s advisory for affected and fixed DNA Center releases.
- Upgrade or patch according to Cisco’s official guidance.
- Restrict DNA Center access to trusted management networks only.
- Monitor for unusual unauthenticated HTTP access to DNA Center.
- If disclosure is suspected, review exposed configuration data and response obligations.
Validation and detection
- Inventory all Cisco DNA Center deployments and versions.
- Compare deployed versions with Cisco’s advisory scope.
- Confirm DNA Center is not exposed to the public internet.
- Review access logs for suspicious unauthenticated HTTP requests.
- Assess whether configuration files contain sensitive reusable credentials or network secrets.
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-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 lookupCVE-2020-3411 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
- High
- CVSS
- 7.5 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/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:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.5HighVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- 20200805 Cisco DNA Center Information Disclosure 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.
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.