PT-2023-6970 · Microsoft · Exchange Server

Anna + 4 · Published 2023-08-25 · Updated 2024-05-29 · CVE-2023-36035

Positive Technologies (AI Summary)

CVSS v3.1

8.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Microsoft Exchange Server (affected versions not specified)

Description The issue is related to insufficient protection of service data during NTLM authentication, specifically with the IsUNCPath method. This can allow a remote attacker to conduct spoofing attacks. The vulnerability may enable an attacker to influence the system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Deserialization of Untrusted Data

Improper Authentication

Information Disclosure

Weakness Enumeration

CWE-502

CWE-287

CWE-200

Related Identifiers

BDU:2023-07989

CVE-2023-36035

ZDI-23-1637

Affected Products

Exchange Server

References · 9

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2023-36035 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-23-1637 · Security Note
• https://osv.dev/vulnerability/CVE-2023-36035 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-36035 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36035 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-07989 · Security Note
• https://t.me/avleonovcom/1153 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2023111454 · Note
• https://twitter.com/chudyPB/status/1724489497432244391 · Twitter Post