CVE-2021-29431

Sydent is a reference Matrix identity server. Sydent can be induced to send HTTP GET requests to internal systems, due to lack of parameter validation or IP address blacklisting. It is not possible to exfiltrate data or control request headers, but it might be possible to use the attack to perform an internal port enumeration. This issue has been addressed in in 9e57334, 8936925, 3d531ed, 0f00412. A potential workaround would be to use a firewall to ensure that Sydent cannot reach internal HTTP resources.
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Configurations

Configuration 1 (hide)

cpe:2.3:a:matrix:sydent:*:*:*:*:*:*:*:*

Information

Published : 2021-04-15 14:15

Updated : 2021-04-22 08:27


NVD link : CVE-2021-29431

Mitre link : CVE-2021-29431


JSON object : View

CWE
CWE-20

Improper Input Validation

CWE-918

Server-Side Request Forgery (SSRF)

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Products Affected

matrix

  • sydent