What’s Vulnerable › Vulnerabilities

CVE-2018-9843

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 16.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-04-12 · updated 2026-06-17
• Weakness: CWE-502

Description

The REST API in CyberArk Password Vault Web Access before 9.9.5 and 10.x before 10.1 allows remote attackers to execute arbitrary code via a serialized .NET object in an Authorization HTTP header.

Affected products

• CyberArk Password Vault: before 9.9.5; from 10.0 before 10.1 — fixed in 10.1, 9.9.5

How to fix

Upgrade to a fixed version: CyberArk Password Vault 10.1, 9.9.5. Check the vendor advisory for mitigations.

References

• http://seclists.org/fulldisclosure/2018/Apr/18
• http://www.securityfocus.com/archive/1/541932/100/0/threaded
• http://www.securitytracker.com/id/1040675
• https://www.exploit-db.com/exploits/44429/
• https://www.redteam-pentesting.de/en/advisories/rt-sa-2017-014/-cyberark-password-vault-web-access-remote-code-execution
• http://seclists.org/fulldisclosure/2018/Apr/18
• http://www.securityfocus.com/archive/1/541932/100/0/threaded
• http://www.securitytracker.com/id/1040675
• https://www.exploit-db.com/exploits/44429/
• https://www.redteam-pentesting.de/en/advisories/rt-sa-2017-014/-cyberark-password-vault-web-access-remote-code-execution

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