9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
The community is hard at work building chains to pull sessions out of vulnerable Exchange servers. This week Rapid7’s own wvu & Spencer McIntyre added a module that implements the ProxyShell exploit chain originally demonstrated by Orange Tsai. The module also benefited from research and analysis by Jang, PeterJson, brandonshi123, and mekhalleh (RAMELLA Sébastien) to make it as simple as finding an email for an administrator of vulnerable version of exchange as the entrypoint to chain CVE-2021-31207, CVE-2021-34523, & CVE-2021-34473 into sessions for everyone to enjoy.
With Google Summer of Code 2021 moving into its final phases, pingport80 had 4 PRs land in this week’s release. These improvements and fixes to interactions with sessions make post exploitation tasks more accessible, bringing the community more capabilities and stability along the way.
imgProcess.cfm
endpoint, and using the file
parameter which contains a directory traversal vulnerability, they can write a file to an arbitrary location. Combining the two capabilities, this module writes a CFML script to the vulnerable server and achieves unauthenticated code execution as the user running the Lucee server.cmd_execute
to have the command run in a subshell by Meterpreter.post/windows/gather/enum_unattend
module.get_env
and command_exists?
post API methods for Powershell session types.dir
command returns a list.rename_file
method.check
method of exploit/windows/local/cve_2018_8453_win32k_priv_esc
.auxiliary/scanner/smb/smb_enum_gpp
module where the path that was being generated by the module caused an SMB exception to be raised.As always, you can update to the latest Metasploit Framework with msfupdate
and you can get more details on the changes since the last blog post from GitHub:
If you are a git
user, you can clone the Metasploit Framework repo (master branch) for the latest. To install fresh without using git, you can use the open-source-only Nightly Installers or the binary installers (which also include the commercial edition).
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C