Security readout for executives and security teams
Plain-English summary
This flaw lets an outside attacker trick a logged-in Cisco Prime Network Registrar administrator into changing system configuration. A successful attack could create or edit privileged accounts and disrupt networking services managed by CPNR. It matters most where administrators use the web interface from ordinary browsing environments.
Executive priority
Treat this as a high-priority management-plane risk if CPNR supports critical DHCP, DNS, or IP address management operations. The attack needs administrator interaction, but successful configuration changes could affect service availability and administrative control.
Technical view
CVE-2020-3148 is a CSRF vulnerability in the CPNR web-based interface caused by insufficient CSRF protections. Exploitation is network-reachable but requires user interaction from an administrator with an active session. Impact is high integrity and low availability; confidentiality impact is not identified in the provided CVSS vector.
Likely exposure
Exposure is likely limited to organizations running Cisco Prime Network Registrar with its web management interface accessible to administrators. The bundle does not identify affected version ranges or CPEs, so asset owners must verify applicability against Cisco guidance.
Exploitation context
The sources describe social-engineering an administrator into clicking a malicious link while authenticated. The bundle does not show CISA KEV listing or other cited evidence of active exploitation. No exploit details should be assumed from the provided information.
Researcher notes
CWE-352 applies. CVSS 3.0 vector is AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L. The provided data lacks affected version ranges, patch versions, and proof of exploitation, so analysis should stay tied to Cisco’s advisory and local asset evidence.
Mitigation direction
- Review the Cisco advisory for affected releases and official remediation guidance.
- Prioritize remediation for CPNR systems used to manage production networking services.
- Restrict access to the CPNR web interface to trusted administration networks.
- Separate administrative browsing from email and general web activity where feasible.
- Review privileged CPNR accounts and recent configuration changes for unauthorized modifications.
Validation and detection
- Inventory Cisco Prime Network Registrar deployments and management interface exposure.
- Confirm installed CPNR versions against the Cisco advisory applicability information.
- Check whether administrators access CPNR through active browser sessions on shared-use workstations.
- Review audit logs for unexpected user creation, privilege changes, or configuration edits.
- Verify compensating access controls around the CPNR web interface.
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-352: 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-2020-3148 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
- 7.1 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
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:R/S:U/C:N/I:H/A:L2.84.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.1HighVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
Source materials
- CVE List V5 sourceCVE List V5
- 20200304 Cisco Prime Network Registrar Cross-Site Request Forgery 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.
Cross-Site Request Forgery (CSRF)
Cross-Site Request Forgery (CSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.