Security readout for executives and security teams
Plain-English summary
Some Liferay versions put a CSRF security token into URLs. If an attacker can observe a user’s traffic, they may capture that token and trick the application into accepting unauthorized actions as that user. The source bundle does not provide a CVSS score or report active exploitation.
Executive priority
Prioritize remediation if affected Liferay systems are internet-facing or handle privileged workflows. The business risk is unauthorized actions through user sessions, but urgency is harder to quantify because severity and exploitation evidence are incomplete.
Technical view
CVE-2021-33338 affects the Liferay Layout module. The p_auth CSRF token is exposed in URLs in Liferay Portal 7.1.0 through 7.3.2, DXP 7.1 before fix pack 19, and DXP 7.2 before fix pack 6, enabling MITM-assisted CSRF attacks.
Likely exposure
Exposure is limited to organizations running the listed Liferay Portal or DXP versions. Public-facing portals, authenticated administrative workflows, and environments where URLs may be intercepted or logged deserve priority review.
Exploitation context
The provided sources describe a man-in-the-middle attacker obtaining p_auth from URLs, then using it for CSRF. CISA KEV is false in the bundle, and no cited source confirms active exploitation.
Researcher notes
The bundle lacks CVSS, CWE, and detailed vendor remediation text beyond affected ranges and DXP fix packs. Validate exposure by version and observable p_auth URL behavior, without assuming broader Liferay product impact.
Mitigation direction
- Apply Liferay DXP 7.1 fix pack 19 or later where applicable.
- Apply Liferay DXP 7.2 fix pack 6 or later where applicable.
- For Liferay Portal, check the Liferay advisory for the fixed upgrade path.
- Treat p_auth-bearing URLs as sensitive in logs, analytics, and support artifacts.
Validation and detection
- Inventory all Liferay Portal and DXP deployments and record exact versions.
- Confirm whether any deployment matches the affected version ranges.
- Review generated Layout module URLs for p_auth token exposure.
- Check access logs, referrers, and proxies for stored p_auth values.
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.
Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-33338 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/120748276CVE reference · x_refsource_CONFIRM
- https://issues.liferay.com/browse/LPE-17030CVE reference · x_refsource_CONFIRM
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.