Actively exploited · Published May 8, 2019 · Assigned by mitre
CVE-2019-11510
Critical 9.9 Exploited Ransomware
In plain English
A critical-severity path traversal in Pulse Connect Secure from Ivanti. Attackers are actively exploiting it in the wild (listed by CISA on November 3, 2021). It has been used in ransomware campaigns. The chance it is exploited in the next 30 days is estimated at 100.0% (higher than 99.9% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit, Nuclei, public proof-of-concept code. Apply updates per vendor instructions.
CISA guidance
Apply updates per vendor instructions.
Federal agencies must remediate by May 3, 2022.
Official description
In Pulse Secure Pulse Connect Secure (PCS) 8.2 before 8.2R12.1, 8.3 before 8.3R7.1, and 9.0 before 9.0R3.4, an unauthenticated remote attacker can send a specially crafted URI to perform an arbitrary file reading vulnerability .
Affected products (as reported)
Weakness: CWE-22 · Vector: CVSS:3.0/AC:L/AV:N/A:H/C:H/I:H/PR:L/S:C/UI:N
References
- https://kb.pulsesecure.net/?atype=sa x_refsource_MISC
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44101/ x_refsource_CONFIRM
- 108073 vdb-entry, x_refsource_BID
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0010 x_refsource_CONFIRM
- http://packetstormsecurity.com/files/154176/Pulse-Secure-SSL-VPN-8.1R15.1-8.2-8.3-9.0-Arbitrary-File-Disclosure.html x_refsource_MISC
- https://badpackets.net/over-14500-pulse-secure-vpn-endpoints-vulnerable-to-cve-2019-11510/ x_refsource_MISC
- http://packetstormsecurity.com/files/154231/Pulse-Secure-SSL-VPN-File-Disclosure-NSE.html x_refsource_MISC
- https://i.blackhat.com/USA-19/Wednesday/us-19-Tsai-Infiltrating-Corporate-Intranet-Like-NSA.pdf x_refsource_MISC
- https://devco.re/blog/2019/09/02/attacking-ssl-vpn-part-3-the-golden-Pulse-Secure-ssl-vpn-rce-chain-with-Twitter-as-case-study/ x_refsource_MISC
- [guacamole-user] 20190912 Re: [Guacamole hack attack?] mailing-list, x_refsource_MLIST
- VU#927237 third-party-advisory, x_refsource_CERT-VN
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-11510 government-resource