Security readout for executives and security teams
Plain-English summary
CVE-2020-1997 is a PAN-OS GlobalProtect open redirect issue. A malicious actor could cause an authenticated user to leave the trusted GlobalProtect gateway and land on an unexpected site. The main business risk is phishing or credential-trust abuse around a remote access workflow, not direct firewall takeover.
Executive priority
Treat as a moderate remote-access security issue. Patch exposed GlobalProtect systems during the next controlled maintenance window, sooner where remote access is internet-facing or heavily used by privileged staff.
Technical view
The vulnerability is CWE-601 in the GlobalProtect registration flow. Sources describe arbitrary redirect targets away from the trusted gateway after successful authentication. The CVSS 3.1 score is 5.3 with network attack vector, low complexity, no privileges, and low confidentiality impact only.
Likely exposure
Organizations using Palo Alto Networks PAN-OS GlobalProtect on affected versions are the likely exposure group. The description names PAN-OS 7.1 before 7.1.26 and PAN-OS 8.0 before 8.0.14. The supplied metadata also lists later branches, so confirm applicability against Palo Alto’s advisory.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. This should be treated as a phishing-enabling web redirect weakness tied to GlobalProtect authentication flows, not as confirmed in-the-wild compromise evidence.
Researcher notes
The evidence supports an open redirect in GlobalProtect registration, not code execution. The affected-version data is partly inconsistent: the description gives fixed ranges for 7.1 and 8.0, while metadata lists 8.1, 9.0, and 9.1. Validate against Palo Alto’s advisory before scoping later branches.
Mitigation direction
- Upgrade PAN-OS 7.1 deployments to 7.1.26 or later.
- Upgrade PAN-OS 8.0 deployments to 8.0.14 or later.
- Check Palo Alto’s advisory for branch-specific guidance and supported versions.
- Prioritize internet-facing GlobalProtect gateways in remediation planning.
- Monitor for suspicious post-authentication redirects to untrusted domains.
Validation and detection
- Inventory all GlobalProtect gateways and their PAN-OS versions.
- Confirm no gateway runs PAN-OS 7.1 before 7.1.26.
- Confirm no gateway runs PAN-OS 8.0 before 8.0.14.
- Review vendor advisory applicability for any listed later PAN-OS branches.
- Check security logs for unusual external redirect patterns after authentication.
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-601: 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-2020-1997 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
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://security.paloaltonetworks.com/CVE-2020-1997CVE reference · x_refsource_MISC
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.
URL Redirection to Untrusted Site ('Open Redirect')
URL Redirection to Untrusted Site ('Open Redirect') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.