Security readout for executives and security teams
Plain-English summary
CVE-2021-1617 affects Cisco Intersight Virtual Appliance management software. A highly privileged authenticated remote user could abuse weak input validation in the web interface to read or write arbitrary files or run commands as root. The business risk is concentrated where appliance administration is broadly accessible or credentials are compromised.
Executive priority
Treat this as a prioritized administrative-plane issue, not a broad internet-wide emergency based on the provided evidence. Escalate if the appliance is externally reachable, shared among many administrators, or privileged credentials may be compromised.
Technical view
Cisco describes path traversal and command injection issues in the web-based management interface. The CVSS 3.1 vector is AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N, scoring 6.5. Exploitation requires high privileges but can produce root-level command execution or arbitrary file access.
Likely exposure
Exposure is limited to organizations running Cisco Intersight Virtual Appliance. The source bundle does not identify affected version numbers, so teams must compare deployed appliance versions against Cisco's advisory and any current vendor guidance.
Exploitation context
The provided sources do not indicate CISA KEV listing or active exploitation. Exploitation requires authenticated high-privilege access to the management interface, but successful exploitation has high confidentiality and integrity impact.
Researcher notes
The key constraints are high required privileges and management-interface access. The key impact is root-level command execution or arbitrary file read/write. The source bundle does not provide affected version ranges, patch identifiers, exploit details, or vendor workarounds.
Mitigation direction
- Review Cisco's advisory for affected and fixed release guidance.
- Upgrade or remediate according to Cisco's published instructions.
- Restrict access to the appliance management interface.
- Limit privileged appliance accounts to required administrators only.
- Monitor administrative activity for unexpected file changes or command execution.
Validation and detection
- Inventory all Cisco Intersight Virtual Appliance deployments.
- Confirm deployed versions against Cisco advisory guidance.
- Verify management access is restricted to approved networks and administrators.
- Review privileged account lists and recent authentication activity.
- Check logs for unexpected administrative file operations or system command activity.
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-36: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-1617 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/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:N/S:U/C:H/I:H/A:N1.25.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- 20210721 Cisco Intersight Virtual Appliance VulnerabilitiesCVE 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.
Absolute Path Traversal
Absolute Path Traversal represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
