CVE-2021-28091
HIGHCVSS 7.5/10EPSS 1.32%
Last modified
CVE-2021-28091 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Lasso all versions prior to 2.7.0 has improper verification of a cryptographic signature.. EPSS estimates a 1.32% chance of exploitation in the next 30 days.
Description
Lasso all versions prior to 2.7.0 has improper verification of a cryptographic signature.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Entrouvert | Lasso | < 2.7.0 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
| Fedoraproject | Fedora | 33 |
| Fedoraproject | Fedora | 34 |
References
- https://git.entrouvert.org/lasso.git/commit/?id=076a37d7f0eb74001127481da2d355683693cde9Patch, Vendor Advisory
- https://git.entrouvert.org/lasso.git/tree/NEWS?id=v2.7.0Release Notes, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00013.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2021/dsa-4926Third Party Advisory
- https://git.entrouvert.org/lasso.git/commit/?id=076a37d7f0eb74001127481da2d355683693cde9Patch, Vendor Advisory
- https://git.entrouvert.org/lasso.git/tree/NEWS?id=v2.7.0Release Notes, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00013.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2021/dsa-4926Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-28091?
Lasso all versions prior to 2.7.0 has improper verification of a cryptographic signature.
How severe is CVE-2021-28091?
CVE-2021-28091 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.32% probability of exploitation in the next 30 days.
How do I fix CVE-2021-28091?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- Same Subject, Wrong User: A Cross-Issuer Account Takeover in n8nStrix found an identity-binding bug in n8n's token-exchange flow enabling account takeover.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-28091?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST