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THE THREAT Microsoft has disclosed a new vulnerability impacting Active Directory Certificate Services (ADCS) tracked as CVE-2022-26923 (Active Directory Domain Services Elevation of Privilege Vulnerability). If exploited successfully, an authenticated attacker can escalate privileges in environments where ADCS is running on the domain. eSentire is aware of technical details and tooling [2] for…
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Security advisories — Jun 20, 2019

Second Firefox Zero-Day Announced - CVE-2019-11708

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The Threat

On June 20th, 2019, Mozilla released security patches to address a zero-day vulnerability being exploited in the wild [1]. The vulnerability (CVE-2019-11708) allows for sandbox escape using Prompt:Open. Sandbox escape, in the context of web-browsers, could allow for malicious code to escape a secure environment and reach the user’s machine. Although the vulnerability is not critical on its own, if linked with the “type confusion” vulnerability (CVE-2019-11707) released yesterday, a threat actor can achieve remote code execution.

Due to its use in attacks in the wild, security patches to address CVE-2019-11708 should be applied as soon as possible.

What we’re doing about it

What you should do about it

Additional information

CVE-2019-11708 is due to an insufficient vetting of parameters passed with the Prompt:Open IPC message. The vulnerability was originally discovered in mid-April by Google’s Project Zero. Patch release was prompted after Coinbase, a cryptocurrency exchange, reported attacks utilizing both CVE-2019-11707 and CVE-2019-11708 [2].

For more information on (CVE-2019-11707) see the eSentire advisory Firefox Zero-Day Vulnerability [3].

References:

[1] https://www.mozilla.org/en-US/security/advisories/mfsa2019-19/

[2] https://www.zdnet.com/article/mozilla-fixes-second-firefox-zero-day-exploited-in-the-wild/

[3] https://www.esentire.com/security-advisories/firefox-zero-day-vulnerability/

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