XMPP Service STARTTLS Plaintext Command Injection

medium Nessus Plugin ID 54844
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The remote instant messaging service allows plaintext command injection while negotiating an encrypted communications channel.


The remote XMPP service contains a software flaw in its STARTTLS implementation that could allow a remote, unauthenticated attacker to inject commands during the plaintext protocol phase that will be executed during the ciphertext protocol phase.

Successful exploitation could reveal a user's credentials, allowing an attacker to impersonate them. This could lead to further attacks involving social engineering.


Contact the vendor to see if an update is available.

See Also



Plugin Details

Severity: Medium

ID: 54844

File Name: xmpp_starttls_plaintext_injection.nasl

Version: 1.11

Type: remote

Family: Misc.

Published: 5/27/2011

Updated: 1/2/2019

Dependencies: xmpp_starttls.nasl

Risk Information


Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: AV:N/AC:H/Au:N/C:P/I:P/A:N

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 3/7/2011

Reference Information

BID: 46767

CERT: 555316