CVE-2021-28091 — Improper Verification of Cryptographic Signature in Lasso

CWE-347 — Improper Verification of Cryptographic SignatureCWE-269 — Improper Privilege ManagementCWE-345 — Insufficient Verification of Data Authenticity9 documents8 sources
Severity
7.5HIGHNVD
EPSS
0.5%
top 33.49%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
Entrouvert LassoDebian LassoDebian Linux+4 more
Timeline
PublishedJun 4
Latest updateMay 24

Description

Lasso all versions prior to 2.7.0 has improper verification of a cryptographic signature.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages6 packages

▶debiandebian/lasso< lasso 2.6.1-3 (bookworm)
▶NVDentrouvert/lasso< 2.7.0
▶Debianentrouvert/lasso< 2.6.1-3+3

Also affects: Debian Linux 10.0, 9.0, Fedora 33, 34

Patches

Patch: git.entrouvert.org ↗Patch: git.entrouvert.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-5pxh-5p72-wvcm: Lasso all versions prior to 2↗2022-05-24
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OSV
CVE-2021-28091: Lasso all versions prior to 2↗2021-06-04
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📋Vendor Advisories

6
Microsoft
Lasso all versions prior to 2.7.0 has improper verification of a cryptographic signature.↗2021-06-08
▶
Ubuntu
Lasso vulnerability↗2021-06-02
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Cisco
Lasso SAML Implementation Vulnerability Affecting Cisco Products: June 2021↗2021-06-01
▶
Red Hat
lasso: XML signature wrapping vulnerability when parsing SAML responses↗2021-06-01
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Debian
CVE-2021-28091: lasso - Lasso all versions prior to 2.7.0 has improper verification of a cryptographic s...↗2021
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