PT-2023-25182 · Sliver · Sliver

Published 2023-06-21 · Updated 2024-08-20 · CVE-2023-35170

Positive Technologies (AI Summary)

CVSS v4.0

9.2

Critical

Base vector

AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions Sliver versions up to 1.5.39

Description The cryptography implementation in Sliver allows a man-in-the-middle (MitM) attack with access to the corresponding implant binary to execute arbitrary code on implanted devices via intercepted and crafted responses. A successful attack grants the attacker permission to execute arbitrary code on the implanted device.

Recommendations For Sliver versions up to 1.5.39, users are advised to upgrade to a newer version to mitigate the risk. There are no known workarounds for this vulnerability. As a temporary workaround, consider restricting access to the implant binary to minimize the risk of exploitation.

Fix

Use of a Broken Cryptographic Algorithm

Weakness Enumeration

CWE-327

Related Identifiers

CVE-2023-35170

GHSA-8JXM-XP43-QH3Q

GO-2023-1866

Affected Products

Sliver

References · 15

• https://osv.dev/vulnerability/GHSA-8jxm-xp43-qh3q · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-35170 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-34758 · Security Note
• https://osv.dev/vulnerability/GO-2023-1866 · Vendor Advisory
• https://github.com/BishopFox/sliver · Note
• https://github.com/BishopFox/sliver/releases/tag/v1.5.40 · Note
• https://github.com/BishopFox/sliver/blob/master/implant/sliver/cryptography/implant.go · Note
• https://github.com/BishopFox/sliver/security/advisories/GHSA-8jxm-xp43-qh3q · Note
• https://github.com/BishopFox/sliver/blob/master/implant/sliver/cryptography/crypto.go · Note
• https://github.com/BishopFox/sliver/commit/2d1ea6192cac2ff9d6450b2d96043fdbf8561516 · Note
• https://pkg.go.dev/vuln/GO-2023-1866 · Note
• https://github.com/advisories/GHSA-8jxm-xp43-qh3q · Note
• https://chtsecurity.com/news/04f41dcc-1851-463c-93bc-551323ad8091 · Note
• https://t.me/cvenotify/53060 · Telegram Post
• https://github.com/tangent65536/Slivjacker · Note