Multiple vulnerabilities in Microsoft Windows Point-to-Point Protocol over Ethernet (PPPoE)



Published: 2023-03-14
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2023-23407
CVE-2023-23414
CVE-2023-23385
CWE-ID CWE-362
CWE-264
Exploitation vector Local network
Public exploit N/A
Vulnerable software
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Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Race condition

EUVDB-ID: #VU73508

Risk: Medium

CVSSv3.1: 6.2 [CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-23407

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to a race condition in Windows Point-to-Point Protocol over Ethernet (PPPoE). A remote attacker on the local network can exploit the race and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 - 11 22H2

Windows Server: 2008 R2 - 2022

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-23407


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Race condition

EUVDB-ID: #VU73509

Risk: Medium

CVSSv3.1: 6.2 [CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-23414

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to a race condition in Windows Point-to-Point Protocol over Ethernet (PPPoE). A remote attacker on the local network can exploit the race and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 - 11 22H2

Windows Server: 2008 R2 - 2022

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-23414


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU73510

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-23385

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in Windows Point-to-Point Protocol over Ethernet (PPPoE), which leads to security restrictions bypass and privilege escalation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 - 11 22H2

Windows Server: 2008 - 2022

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-23385


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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