XMPP Service STARTTLS Plaintext Command Injection

Medium Nessus Plugin ID 54844


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: 1.10

Type: remote

Family: Misc.

Published: 2011/05/27

Modified: 2018/11/15

Dependencies: 42089

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 4

Temporal Score: 3.5

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 2011/03/07

Reference Information

BID: 46767

CERT: 555316