Pulse Secure Pulse Connect Secure SSL VPN Unauthenticated Path Traversal (CVE-2019-11510)

critical Nessus Plugin ID 127897

Synopsis

The remote web application server is affected by a path traversal vulnerability.

Description

The instance of Pulse Secure (formerly Juniper Networks JunOS Pulse) Pulse Connect Secure SSL VPN running on the remote host is affected by a path traversal vulnerability. A remote, unauthenticated attacker can exploit this issue, via a specially crafted HTTP request, to access arbitrary files on the remote host.

This can allow an attacker to obtain an authenticated HTTP session with the SSL VPN web application. The attacker could then leverage CVE-2019-11539, an authenticated command injecton vulnerability, to execute arbitrary commands on the SSL VPN.

Solution

Upgrade to a patched version according to the vendor advisory.

See Also

https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44101/

https://hackerone.com/reports/591295

http://www.nessus.org/u?f223eeb2

Plugin Details

Severity: Critical

ID: 127897

File Name: pulse_connect_secure_path_traversal.nbin

Version: 1.48

Type: remote

Family: CGI abuses

Published: 8/16/2019

Updated: 8/22/2022

Configuration: Enable thorough checks

Risk Information

CVSS Score Rationale: Unauthenticated path traversal that leads to remote command exection.

VPR

Risk Factor: Critical

Score: 10

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:H/RL:OF/RC:C

CVSS Score Source: CVE-2019-11510

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 9.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:pulsesecure:pulse_connect_secure

Required KB Items: installed_sw/Pulse Connect Secure

Exploit Available: true

Exploit Ease: Exploits are available

Exploited by Nessus: true

Patch Publication Date: 4/24/2019

Vulnerability Publication Date: 4/24/2019

CISA Known Exploited Dates: 4/23/2021

Exploitable With

Elliot (Pulse Connect Secure File Disclosure)

Reference Information

CVE: CVE-2019-11510

BID: 108073

IAVA: 2019-A-0309-S, 0001-A-0001-S

CISA-NCAS: AA22-011A