Security readout for executives and security teams
Plain-English summary
CVE-2020-13377 is a high-severity path traversal issue in Loadbalancer.org Enterprise VA MAX through 8.3.8. A logged-in, low-privileged remote user could use the web-services interface to read and write sensitive files, creating confidentiality and integrity risk on affected load balancer appliances.
Executive priority
Treat as a priority remediation for affected load balancer appliances. The issue can expose or alter sensitive files after authentication, so the main business risk is compromise of infrastructure configuration or secrets by any user with appliance access.
Technical view
The issue is CWE-22 directory traversal in the web-services interface. The CVSS 3.1 score is 8.1 with network access, low complexity, low privileges, no user interaction, and high confidentiality and integrity impact. Availability impact is not listed.
Likely exposure
Exposure appears limited to Loadbalancer.org Enterprise VA MAX deployments through version 8.3.8 where the web-services interface is reachable and low-privileged authenticated accounts exist. The source bundle does not identify other affected products or CPEs.
Exploitation context
CISA KEV status is false in the provided bundle. The cited description supports authenticated remote exploitation by a low-privileged user, but the bundle does not support claims of active exploitation in the wild.
Researcher notes
The bundle provides high-level vulnerability details but not a vendor advisory, fixed version, or supported workaround. Avoid assuming a specific patch. Validate exposure by product, version, interface reachability, and account model, then align remediation with Loadbalancer.org guidance.
Mitigation direction
- Inventory Enterprise VA MAX appliances and identify versions through 8.3.8.
- Check Loadbalancer.org guidance for the supported fix or upgrade path.
- Restrict web-services interface access to trusted administrative networks.
- Review and reduce low-privileged accounts with appliance access.
- Monitor for unexpected sensitive file reads or writes.
Validation and detection
- Confirm appliance version and whether it is through 8.3.8.
- Verify the web-services interface is not publicly reachable.
- Review account lists for unnecessary low-privileged users.
- Check appliance logs for unusual authenticated web-services activity.
- Confirm remediation status against vendor guidance.
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-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. 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 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-2020-13377 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
- 8.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/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:L/UI:N/S:U/C:H/I:H/A:N2.85.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source materials
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 Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.