PT-2024-2361 · Expressvpn · Expressvpn

Attila Tomaschek · Published 2024-02-11 · Updated 2024-10-30 · CVE-2024-25728

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions ExpressVPN versions prior to 12.73.0 on Windows

Description The issue is related to the split tunneling feature in ExpressVPN, which sends DNS requests according to the Windows configuration instead of using the ExpressVPN DNS servers. This may allow remote attackers to obtain sensitive information about websites visited by VPN users.

Recommendations For ExpressVPN versions prior to 12.73.0 on Windows, update to version 12.73.0 or later to resolve the issue. As a temporary workaround, consider disabling the split tunneling feature until a patch is available.

Fix

Information Disclosure

Insecure Storage of Sensitive Information

Weakness Enumeration

CWE-200

CWE-922

Related Identifiers

BDU:2024-02309

CVE-2024-25728

Affected Products

Expressvpn

References · 16

• https://expressvpn.com/blog/windows-app-dns-requests · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-02309 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2024-25728 · Security Note
• https://osv.dev/vulnerability/CVE-2024-25728 · Vendor Advisory
• https://t.me/cvenotify/93336 · Telegram Post
• https://twitter.com/matarturo/status/1757012376744812922 · Twitter Post
• https://t.me/pentestingnews/43579 · Telegram Post
• https://twitter.com/Komodosec/status/1756892774602076517 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1756823630598549634 · Twitter Post
• https://bleepingcomputer.com/news/security/expressvpn-bug-has-been-leaking-some-dns-requests-for-years · Note
• https://twitter.com/the_yellow_fall/status/1756891455279485129 · Twitter Post
• https://vuldb.com/ru/?id.253410 · Note
• https://twitter.com/CVEnew/status/1756798333144707314 · Twitter Post
• https://t.me/cvenotify/100073 · Telegram Post
• https://twitter.com/EASM_HydrAttack/status/1756890939073700103 · Twitter Post