Vulnerability CVE-2021-32917
Published: 2021-05-13

Description:
An issue was discovered in Prosody before 0.11.9. The proxy65 component allows open access by default, even if neither of the users has an XMPP account on the local server, allowing unrestricted use of the server's bandwidth.

Type:

CWE-862

 (Missing Authorization)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Prosody -> Prosody 
Debian -> Debian linux 

 References:
https://blog.prosody.im/prosody-0.11.9-released/
http://www.openwall.com/lists/oss-security/2021/05/13/1
http://www.openwall.com/lists/oss-security/2021/05/14/2
https://www.debian.org/security/2021/dsa-4916
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