CVE-2021-3033
Prisma Cloud Compute: SAML Authentication Bypass Vulnerability in Console
- Published
- Updated
- Reserved
- Assigned by
- palo_alto
Description
An improper verification of cryptographic signature vulnerability exists in the Palo Alto Networks Prisma Cloud Compute console. This vulnerability enables an attacker to bypass signature validation during SAML authentication by logging in to the Prisma Cloud Compute console as any authorized user. This issue impacts: All versions of Prisma Cloud Compute 19.11, Prisma Cloud Compute 20.04, and Prisma Cloud Compute 20.09; Prisma Cloud Compute 20.12 before update 1. Prisma Cloud Compute SaaS version is not impacted by this vulnerability.
Timeline
ID reserved
By palo_alto
- 35 days later
· 35 days later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| palo_altoCNA (assigner) | 3.1 | Critical9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.2% · top 31% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.1.
Weakness
Affected products
Palo Alto Networks · Prisma Cloud Compute
- affected 19.11 – ≤ update 2
- affected 20.04 – ≤ update 2
- affected 20.09 – ≤ update 2
- affected 20.12 – < update 1
What to do
Solution: This issue is fixed in Prisma Cloud Compute 20.12 update 1 and all later versions.
Workaround: You can mitigate the impact of this issue by disabling SAML authentication in the Prisma Cloud Compute configuration
Exploitation: Palo Alto Networks is not aware of any malicious exploitation of this issue.
References (1)
- https://security.paloaltonetworks.com/CVE-2021-3033 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-3033)Record last updated .