Vulnerability CVE-2011-2523

Vulnerability Name:

CVE-2011-2523 (CCN-68366)

Assigned:

2011-07-04

Published:

2011-07-04

Updated:

2021-04-12

Summary:

vsftpd 2.3.4 downloaded between 20110630 and 20110703 contains a backdoor which opens a shell on port 6200/tcp.

CVSS v3 Severity:

9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

7.3 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): Low Integrity (I): Low Availibility (A): Low

CVSS v2 Severity:

10.0 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
7.8 High (Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C/E:F/RL:OF/RC:UR)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

7.5 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
5.9 Medium (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:F/RL:OF/RC:UR)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial