Security Feature Bypass in Microsoft Lync for Mac 2011
CVE-2018-8474

7.5HIGH

Key Information:

Vendor

Microsoft
Status
Microsoft Lync
Vendor
CVE Published:
13 September 2018

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 24%

What is CVE-2018-8474?

The vulnerability allows for a security feature bypass when Lync for Mac 2011 inadequately sanitizes specially crafted messages. This flaw could enable attackers to leverage the application’s functionalities in unintended ways, potentially leading to unauthorized access or further exploitation of user data.

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Deploy the Patch

Affected Version(s)

Microsoft Lync Mac 2011

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2018-8474 - Proof of Concept

References

http://www.securitytracker.com/id/1041633
vdb-entryx_refsource_SECTRACK
http://www.securityfocus.com/bid/105268
vdb-entryx_refsource_BID
https://www.exploit-db.com/exploits/45936/
exploitx_refsource_EXPLOIT-DB

EPSS Score

24% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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