CVE-2021-29432: Malicious users could abuse Sydent to control the content of invitation emails

CVE-2021-29432 · Severity: low · CVSS 3.1 · 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.

Technologies: matrix-sydent (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2021-29432 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2021-29432 being exploited in the wild.
How severe is CVE-2021-29432?
Low severity, with a CVSS score of 3.1, published 15 April 2021.
Which products and versions are affected?
matrix-sydent (PyPI) ECOSYSTEM:introduced=0,fixed=2.3.0, GIT:introduced=0,fixed=4469d1d42b2b1612b70638224c07e19623039c42|ECOSYSTEM:introduced=0,fixed=2.3.0.
Is there a fix for CVE-2021-29432?
Yes. matrix-sydent (PyPI): upgrade to 2.3.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2021-29432?
Check whether you run matrix-sydent (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • matrix-sydent (PyPI): upgrade to 2.3.0 or later
    pip install "matrix-sydent>=2.3.0"

Affected products

  • matrix-sydent (PyPI) ECOSYSTEM:introduced=0,fixed=2.3.0, GIT:introduced=0,fixed=4469d1d42b2b1612b70638224c07e19623039c42|ECOSYSTEM:introduced=0,fixed=2.3.0

Identifiers

  • CVE-2021-29432
  • GHSA-mh74-4m5g-fcjx
  • PYSEC-2021-23

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