Multiple vulnerabilities in CyberArk Password Vault Web Access
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2018-9843 CVE-2018-9842 |
| CWE-ID | CWE-502 CWE-200 |
| Exploitation vector | Network |
| Public exploit |
Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #2 is available. |
| Vulnerable software |
Password Vault Web Access Web applications / Remote management & hosting panels |
| Vendor | CyberArk |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Deserialization of untrusted data
EUVDB-ID: #VU11665
Risk: High
CVSSv4.0: 8.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]
CVE-ID: CVE-2018-9843
CWE-ID:
CWE-502 - Deserialization of Untrusted Data
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to use of authentication tokens which consist of serialized .NET objects. A remote attacker can submit specially crafted tokens, trigger deserialization of untrusted data and execute arbitrary code with privileges of the web application.
Successful exploitation of the vulnerability may result in system compromise.
Update to version 9.9.5, 9.10.1, 10.2.
Vulnerable software versionsPassword Vault Web Access: All versions
CPE2.3 External linksQ & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker 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.
2) Information disclosure
EUVDB-ID: #VU11826
Risk: Low
CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]
CVE-ID: CVE-2018-9842
CWE-ID:
CWE-200 - Information exposure
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to obtain potentially sensitive information.
The vulnerability exists due to improper information control. A remote attacker can send a specially crafted Logon request to cause the target service to return a response containing 49 bytes of potentially sensitive information from system memory.
MitigationUpdate to versions 9.7 or 10.
Vulnerable software versionsPassword Vault Web Access: 9.5
CPE2.3 External linkshttps://www.redteam-pentesting.de/advisories/rt-sa-2017-015
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker 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.
