.NET Framework Denial of Service Vulnerability
CVE-2022-30130
Security Vulnerability
Released: May 10, 2022
Last updated: Dec 15, 2022
- Assigning CNA
- Microsoft
- CVE.org link
- CVE-2022-30130
- Impact
- Denial of Service
- Max Severity
- Low
- CVSS Source
- Microsoft
- Vector String
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C
- Metrics
- CVSS:3.1 3.3 / 2.9Base score metrics: 3.3 / Temporal score metrics: 2.9
Metric
Value
Base score metrics(8)
Attack Vector
This metric reflects the context by which vulnerability exploitation is possible. The Base Score increases the more remote (logically, and physically) an attacker can be in order to exploit the vulnerable component.
Local
The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or remotely (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., tricking a legitimate user into opening a malicious document)
Attack Complexity
This metric describes the conditions beyond the attacker’s control that must exist in order to exploit the vulnerability. Such conditions may require the collection of more information about the target or computational exceptions. The assessment of this metric excludes any requirements for user interaction in order to exploit the vulnerability. If a specific configuration is required for an attack to succeed, the Base metrics should be scored assuming the vulnerable component is in that configuration.
Low
Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required
This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability.
None
The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction
This metric captures the requirement for a user, other than the attacker, to participate in the successful compromise the vulnerable component. This metric determines whether the vulnerability can be exploited solely at the will of the attacker, or whether a separate user (or user-initiated process) must participate in some manner.
Required
Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope
Does a successful attack impact a component other than the vulnerable component? If so, the Base Score increases and the Confidentiality, Integrity and Authentication metrics should be scored relative to the impacted component.
Unchanged
An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality
This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability. Confidentiality refers to limiting information access and disclosure to only authorized users, as well as preventing access by, or disclosure to, unauthorized ones.
None
There is no loss of confidentiality within the impacted component.
Integrity
This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information.
None
There is no loss of integrity within the impacted component.
Availability
This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability. It refers to the loss of availability of the impacted component itself, such as a networked service (e.g., web, database, email). Since availability refers to the accessibility of information resources, attacks that consume network bandwidth, processor cycles, or disk space all impact the availability of an impacted component.
Low
Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.
Temporal score metrics(3)
Exploit Code Maturity
This metric measures the likelihood of the vulnerability being attacked, and is typically based on the current state of exploit techniques, public availability of exploit code, or active, 'in-the-wild' exploitation.
Unproven
No publicly available exploit code is available, or an exploit is theoretical.
Remediation Level
The Remediation Level of a vulnerability is an important factor for prioritization. The typical vulnerability is unpatched when initially published. Workarounds or hotfixes may offer interim remediation until an official patch or upgrade is issued. Each of these respective stages adjusts the temporal score downwards, reflecting the decreasing urgency as remediation becomes final.
Official Fix
A complete vendor solution is available. Either the vendor has issued an official patch, or an upgrade is available.
Report Confidence
This metric measures the degree of confidence in the existence of the vulnerability and the credibility of the known technical details. Sometimes only the existence of vulnerabilities are publicized, but without specific details. For example, an impact may be recognized as undesirable, but the root cause may not be known. The vulnerability may later be corroborated by research which suggests where the vulnerability may lie, though the research may not be certain. Finally, a vulnerability may be confirmed through acknowledgement by the author or vendor of the affected technology. The urgency of a vulnerability is higher when a vulnerability is known to exist with certainty. This metric also suggests the level of technical knowledge available to would-be attackers.
Confirmed
Detailed reports exist, or functional reproduction is possible (functional exploits may provide this). Source code is available to independently verify the assertions of the research, or the author or vendor of the affected code has confirmed the presence of the vulnerability.
Please see Common Vulnerability Scoring System for more information on the definition of these metrics.
Exploitability
The following table provides an exploitability assessment for this vulnerability at the time of original publication.
- Publicly disclosed
- No
- Exploited
- No
- Exploitability assessment
- Exploitation Less Likely
Acknowledgements
- Eran Zimmerman Gonen with Accenture Security Israel
- Eran Zimmerman Gonen with Accenture Security Israel
Security Updates
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle.
Release date Descending
Product
Platform
Impact
Max Severity
Article
Download
Build Number
May 10, 2022
Microsoft .NET Framework 3.5 AND 4.6/4.6.2
Windows 10 for x64-based Systems
Denial of Service
Low
- 10.0.10240.19624
May 10, 2022
Microsoft .NET Framework 3.5 AND 4.6/4.6.2
Windows 10 for 32-bit Systems
Denial of Service
Low
- 10.0.10240.19624
May 10, 2022
Microsoft .NET Framework 4.6.2
Windows Server 2008 for x64-based Systems Service Pack 2
Denial of Service
Low
- 4.7.03946.07
- 4.7.03946.05
May 10, 2022
Microsoft .NET Framework 4.6.2
Windows Server 2008 for 32-bit Systems Service Pack 2
Denial of Service
Low
- 4.7.03946.07
- 4.7.03946.05
May 10, 2022
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Windows Server 2012 R2 (Server Core installation)
Denial of Service
Low
- 4.7.03946.02
- 4.7.03946.03
May 10, 2022
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Windows Server 2012 R2
Denial of Service
Low
- 4.7.03946.02
- 4.7.03946.03
May 10, 2022
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Windows Server 2012 (Server Core installation)
Denial of Service
Low
- 4.7.03946.02
- 4.7.03946.03
May 10, 2022
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Windows Server 2012
Denial of Service
Low
- 4.7.03946.02
- 4.7.03946.03
May 10, 2022
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Denial of Service
Low
- 4.7.03946.07
- 4.7.03946.05
May 10, 2022
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Denial of Service
Important
- 4.7.03946.07
- 4.7.03946.05
May 10, 2022
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Windows RT 8.1
Denial of Service
Low
- Monthly Rollup
- 4.7.03946.02
May 10, 2022
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Windows 8.1 for x64-based systems
Denial of Service
Low
- 4.7.03946.02
- 4.7.03946.03
May 10, 2022
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Windows 8.1 for 32-bit systems
Denial of Service
Low
- 4.7.03946.02
- 4.7.03946.03
May 10, 2022
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Windows 7 for x64-based Systems Service Pack 1
Denial of Service
Low
- 4.7.03946.07
- 4.7.03946.05
May 10, 2022
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Windows 7 for 32-bit Systems Service Pack 1
Denial of Service
Low
- 4.7.03946.07
- 4.7.03946.05
All results loaded
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Disclaimer
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Revisions
version
revisionDate
description
3.1
Dec 15, 2022
The following revisions have been made: 1) Added .NET Framework 3.5 and 4.6/4.6.2 installed on Windows 10 for 32-bit Systems and Windows 10 for x65-based Systems as .NET 4.6 installed on Windows 10 is supported. 2) Removed .NET Framework 3.5 and 4.6.2 installed on Windows 10 for 32-bit Systems and Windows 10 for x65-based Systems. Microsoft strongly recommends that customers install the updates to be fully protected from the vulnerability. Customers whose systems are configured to receive automatic updates do not need to take any further action.
3.0
Dec 2, 2022
In the Security Updates table made the following revisions: 1) Added .NET Framework 3.5 and 4.6.2 installed on Windows 10 for 32-bit Systems and Windows 10 for x65-based Systems as they are affected by this vulnerability. Microsoft strongly recommends that customers install the updates to be fully protected from the vulnerability. Customers whose systems are configured to receive automatic updates do not need to take any further action. 2) Removed .NET Framework 4.6 and .NET Framework 4.6.1 installed on supported editions of Windows Server 2008, Windows 7, Windows Server 2008 R2, Windows Server 2012, Windows 8.1, Windows RT 8.1, and Windows Server 2012 R2 as these versions of .NET Framework are no longer supported.
2.0
Aug 9, 2022
To comprehensively address this vulnerability, Microsoft has released Monthly Rollup KB5016268 for .NET Framework 3.5 installed on Windows 8.1 and Windows Server 2012 R2. Microsoft strongly recommends that customers install the update to be fully protected from the vulnerability. Customers whose systems are configured to receive automatic updates do not need to take any further action.
1.0
May 10, 2022
Information published.
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