Multiple vulnerabilities in vBulletin
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2019-17271 CVE-2019-17132 |
| CWE-ID | CWE-89 CWE-94 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #2 is available. |
| Vulnerable software Subscribe |
vBulletin Web applications / Forum & blogging software |
| Vendor | vBulletin |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) SQL injection
EUVDB-ID: #VU21601
Risk: Low
CVSSv3.1: 3.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-17271
CWE-ID:
CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary SQL queries in database.
The vulnerability exists due to insufficient sanitization of user-supplied data passed via "where" parameter to "ajax/api/hook/getHookList" or "ajax/api/widget/getWidgetList" API endpoints. A remote authenticated attacker with "canadminproducts", "canadminstyles" (1) or "canusesitebuilder" (2) permissions can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.
Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.
MitigationInstall updates from vendor's website.
Vulnerable software versionsvBulletin: 5.5.0 - 5.5.4 Patch Level 1
External linkshttp://karmainsecurity.com/KIS-2019-01
http://seclists.org/fulldisclosure/2019/Oct/8
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) PHP Code Injection
EUVDB-ID: #VU21600
Risk: High
CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2019-17132
CWE-ID:
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation in the " ajax/api/user/updateAvatar" endpoint when processing data passed via the "data[filedata" HTTP POST parameter. A remote authenticated attacker can send a specially crafted request to the Avatar update script and execute arbitrary PHP code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsvBulletin: 5.5.0 - 5.5.4 Patch Level 1
External linkshttp://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4423646-vbulletin-5-5-x-5-5-2-5-5-3-and-5-5-4-security-patch-level-2
http://karmainsecurity.com/pocs/CVE-2019-17132
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
