Azure Active Directory Denial of Service Vulnerability

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• microsoft azure active directoryall versions

Versions reported by the vendor

Affected version ranges reported by the assigning authority (microsoft). Independent of NVD's CPE analysis and usually ahead of it.

• Microsoft Azure Active Directory

  • 2021 and later · before 5.7.1affected

• Microsoft Microsoft .NET Framework 3.5

  • 3.5.0 and later · before 2.0.50727.9182 & 3.0.30729.9168affected

• Microsoft Microsoft .NET Framework 3.5 AND 4.7.2

  • 4.7.0 and later · before 2.0.50727.9069 & 3.0.30729.9067 & 4.7.4143.0affected

• Microsoft Microsoft .NET Framework 3.5 AND 4.8

  • 4.8.0 and later · before 2.0.50727.9069 & 3.0.30729.9067 & 4.8.4803.0affected

• Microsoft Microsoft .NET Framework 3.5 AND 4.8.1

  • 4.8.1 and later · before 2.0.50727.9182 & 3.0.30729.9168 & 4.8.9339.0affected

• Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2

  • 4.7.0 and later · before 4.7.4143.0affected

• Microsoft Microsoft .NET Framework 4.8

  • 4.8.0 and later · before 4.8.4803.0affected

• Microsoft Microsoft .NET Framework 4.8.1

  • 4.8.0.0 and later · before 4.8.9340.0affected

Other highest-scoring records for the same primary product.

• CVE-2020-0646A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly, aka '.NET Framework Remote KEV
  99Now
• CVE-2024-29059.NET Framework Information Disclosure VulnerabilityKEV
  90Now
• CVE-2017-8759Microsoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 allow an attacker to execute code remotely via a malicious documeKEV
  88Now
• CVE-2015-1671The Windows DirectWrite library, as used in Microsoft .NET Framework 3.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2; Office 2007 SP3 and 2010KEV
  76This week
• CVE-2023-36899ASP.NET Elevation of Privilege Vulnerability
  58Plan
• CVE-2014-0257Microsoft .NET Framework 1.0 SP3, 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, and 4.5.1 does not properly determine whether it is safe to execute
  58Plan

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

Data received over the network is deserialized into the language’s native object format without verifying its source. Code paths inside the object can be triggered during deserialization.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1payload = sock.recv(65536)2job = pickle.loads(payload)

1payload = sock.recv(65536)2if not hmac.compare_digest(sign(payload), header_sig):3    raise PermissionError("invalid signature")4job = JobSchema.validate(json.loads(payload))

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.