CVE-2021-29432

low-risk
Published 2021-04-15

Sydent is a reference matrix identity server. A malicious user could abuse Sydent to send out arbitrary emails from the Sydent email address. This could be used to construct plausible phishing emails, for example. This issue has been fixed in 4469d1d.

Do I need to act?

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0.25% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Sydent

Affected Vendors

Matrix

References (8)

Patch https://github.com/matrix-org/sydent/commit/4469d1d42b2b1612b70638224c07e1962303...
Release Notes https://github.com/matrix-org/sydent/releases/tag/v2.3.0
Patch https://github.com/matrix-org/sydent/security/advisories/GHSA-mh74-4m5g-fcjx
Product https://pypi.org/project/matrix-sydent/
Patch https://github.com/matrix-org/sydent/commit/4469d1d42b2b1612b70638224c07e1962303...
Release Notes https://github.com/matrix-org/sydent/releases/tag/v2.3.0
Patch https://github.com/matrix-org/sydent/security/advisories/GHSA-mh74-4m5g-fcjx
Product https://pypi.org/project/matrix-sydent/
27
/ 100
low-risk
Severity 21/34 · High
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal