PT-2023-8581 · Ivanti · Ivanti Avalanche

Published 2023-12-19 · Updated 2024-03-11 · CVE-2023-46263

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Ivanti Avalanche versions 6.4.1 and below

Description The issue is related to an unrestricted upload of files with dangerous types, which could allow a remote attacker to achieve remote code execution. This vulnerability can be exploited by sending a crafted request to the target server. Successful exploitation would allow an authenticated attacker to execute code in the context of SYSTEM.

Recommendations For Ivanti Avalanche versions 6.4.1 and below, update to a version that includes the fix for this issue to prevent remote code execution. As a temporary workaround, consider restricting file uploads to prevent exploitation until a patch is available.

Fix

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

BDU:2024-01222

CVE-2023-46263

ZDI-24-056

Affected Products

Ivanti Avalanche

References · 18

• https://zerodayinitiative.com/advisories/ZDI-24-056 · Security Note
• https://download.wavelink.com/Files/avalanche_v6.4.2_release_notes.txt · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-46263 · Security Note
• https://bdu.fstec.ru/vul/2024-01222 · Security Note
• https://osv.dev/vulnerability/CVE-2023-46263 · Vendor Advisory
• https://twitter.com/fletch_ai/status/1755775287520809192 · Twitter Post
• https://twitter.com/moton/status/1755006401158754747 · Twitter Post
• https://twitter.com/CVEnew/status/1737138858993828201 · Twitter Post
• https://twitter.com/f1tym1/status/1754934193992175919 · Twitter Post
• https://twitter.com/TrendKon/status/1755063609074548769 · Twitter Post
• https://t.me/pentestingnews/43425 · Telegram Post
• https://twitter.com/thezdi/status/1754915649225212318 · Twitter Post
• https://cxsecurity.com/cveshow/CVE-2023-46263 · Note
• https://t.me/malwr/7893 · Telegram Post
• https://twitter.com/crossbreed_dog/status/1755216938685579615 · Twitter Post