News

This is a notice from the Information Security Office to alert you to multiple vulnerabilities announced by Atlassian in their entire product suite of self-hosted products, including Jira and Confluence. Atlassian-hosted products are not affected by these vulnerabilities. Please share this alert internally with IT admins and service owners who run the product so they are aware and know what actions to take to address these vulnerabilities.

ISO is aware of a critical, actively exploited vulnerability affecting the React and Next.js ecosystems. Please share this alert internally with IT admins and service owners who run web applications utilizing Next.js or React Server Components (RSC) so they are aware and know what actions to take to address this vulnerability immediately.

This is a notice from the Information Security Office to alert you of a medium-severity vulnerability that affects the Trellix HX management console for our EDR agent. This vulnerability can only be exploited by manipulating a previously compromised endpoint agent to send a malformed event to the console. The patch was applied to the console, and no change is needed on the endpoints.

This is a notice from the Information Security Office to alert you to a vulnerability that impacts the R programming language. Please share this alert internally with IT admins, service owners, and researchers who run the product so they are aware and know what actions to take to address this vulnerability.

LastPass has updated the information on the Security Incident they disclosed in August. They have discovered that the attackers were able to leverage the information they got in August to gain access to some customer data including some encrypted vault backups. ISO has provided guidance to campus users of LastPass. Click for further details.

A critical vulnerability has been found in the widely used Java framework Spring Core. While Remote Code Execution (RCE) is possible and a Proof-of-Concept has already been released, how to exploit the vulnerability can vary based on system configuration and research on it is still evolving.

A critical vulnerability has been found in the widely used Java logging library log4j. This vulnerability can allow remote code execution by an unauthenticated attacker, is easy to exploit, and proof of concept code is publicly available.

Apple released a security update for macOS, watchOS, iOS, iPadOS, and Safari. Apple is aware of a report of potential exploits in the wild.

A software update was released fixing a local privilege escalation vulnerability affecting MacOS, iPadOS, and iOS. A proof of concept exploit has been publicly released and Apple reports this vulnerability is currently being exploited.

Updated May 11, 2021:

UCOP Notice to UC Community: https://ucnet.universityofcalifornia.edu/data-security/index.html

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Updated Apr. 15, 2021:

Mar. 31st - The Internal Revenue Service issued a warning of an ongoing IRS-impersonation scam that appears to primarily target educational institutions, including students and staff who have ".edu" email addresses. The phishing emails appear to target university and college students from both public and private, profit and non-profit institutions.

The fraudulent email displays the IRS logo and uses various subject lines such as "Tax Refund Payment" or "Recalculation of your tax refund payment." It asks people to click a link and submit a form to claim their refund. 

This month Microsoft released patches for multiple serious vulnerabilities in the Windows TCP/IP network stack (including CVE-2021-24074, CVE-2021-24094)[1,2]. These vulnerabilities can allow for remote code execution. Additionally, Microsoft appears to have released patches for Windows 7 and Windows Server 2008 which are officially no longer supported.

A serious heap-based buffer overflow has been discovered in sudo that is exploitable by any local user. The flaw can be leveraged to elevate privileges to root, even if the user is not listed in the sudoers file. User authentication is not required to exploit the flaw. Researchers have developed working exploits against Ubuntu, Debian, and Fedora Linux distributions. Other UNIX-based operating systems and distributions are also likely to be exploitable. [1] [2]

A serious vulnerability exists in the Windows TCP/IP network stack [1,2]. Currently, it is known that this vulnerability can be used to trigger a Denial of Service (DoS) event, however, Microsoft and others are warning that it may also be possible to remotely execute code. An attacker can exploit this vulnerability by sending a crafted ICMPv6 Router Advertisement to the target system. The vulnerability does not require authentication or user-interaction.

Summary

The Information Security Office is aware of published reports that there are flaws in the built-in Mail app on iPhones. These flaws reportedly allow attackers to get remote access in the context of the Mail app without any interaction on the users part. [1]

Summary

The Information Security Office (ISO) is aware of the new, unpatched Windows Zero-day exploit, that has been reported by Microsoft[1] and in the press[2]. The vulnerability is currently unpatched; however, workarounds are available.