PT-2023-18416 · Softether · Softether Vpn

Lilith >_> · Published 2023-10-12 · Updated 2023-10-18 · CVE-2023-22308

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions SoftEther VPN versions 5.01.9674 through 5.02

Description An integer underflow vulnerability exists in the vpnserver OvsProcessData functionality. A specially crafted network packet can lead to denial of service. An attacker can send a malicious packet to trigger this issue.

Recommendations For versions 5.01.9674 through 5.02, consider disabling the OvsProcessData functionality until a patch is available. Restrict access to the vpnserver to minimize the risk of exploitation. Avoid using the vulnerable functionality in the vpnserver until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Integer Underflow

Weakness Enumeration

CWE-191

Related Identifiers

CVE-2023-22308

Affected Products

Softether Vpn

References · 6

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2023-1737 · Exploit
• https://osv.dev/vulnerability/CVE-2023-22308 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-22308 · Security Note
• https://t.me/cvenotify/59652 · Telegram Post
• https://t.me/cibsecurity/72184 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1712542348419231831 · Twitter Post