Lucene search

K
rubygemsRubySecRUBY:METASPLOIT-FRAMEWORK-2020-7385
HistoryMay 23, 2022 - 9:00 p.m.

Metasploit Framework user exposes Metasploit to same deserialization issue that is exploited by that module

2022-05-2321:00:00
RubySec
github.com
3
metasploit
framework
deserialization
issue
drb_remote_codeexec
exploit
vulnerability
system compromise
elevated privileges
attack

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

By launching the drb_remote_codeexec exploit, a Metasploit Framework
user will inadvertently expose Metasploit to the same deserialization issue that
is exploited by that module, due to the reliance on the vulnerable Distributed Ruby
class functions. Since Metasploit Framework typically runs with elevated privileges,
this can lead to a system compromise on the Metasploit workstation. Note that an
attacker would have to lie in wait and entice the Metasploit user to run the affected
module against a malicious endpoint in a “hack-back” type of attack. Metasploit
is only vulnerable when the drb_remote_codeexec module is running. In most cases,
this cannot happen automatically.

Affected configurations

Vulners
Node
rubymetasploit-frameworkRange4.19.0
VendorProductVersionCPE
rubymetasploit-framework*cpe:2.3:a:ruby:metasploit-framework:*:*:*:*:*:*:*:*

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Related for RUBY:METASPLOIT-FRAMEWORK-2020-7385