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However, he said that the attacks have thus far been highly targeted and limited, and possibly the work of a single (unknown, for now) actor. Observed exploitation of this vuln _before_ CVE-2021-26084 (Atlassian Confluence) which got a lot of attention last week.
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“This would allow the attacker to carry out subsequent attacks resulting in RCE.”Įchoing CISA’s assessment, Zoho also noted that “We are noticing indications of this vulnerability being exploited.” The firm characterized the issue as “critical” although a CVSS vulnerability-severity rating has not yet been calculated for the bug.įurther technical details are for now scant (and no public exploit code appears to be making the rounds - yet), but Dahl noted that the zero-day attacks have been going on for quite some time: “This vulnerability allows an attacker to gain unauthorized access to the product through REST API endpoints by sending a specially crafted request,” according to the firm.
The issue at hand is an authentication bypass vulnerability affecting the REST API URLs in ADSelfService Plus, which could lead to remote code execution (RCE), according to Zoho’s knowledge-base advisory. The critical bug ( CVE-2020-10189, with a CVSS score of 9.8) allowed an unauthenticated, remote attacker to gain complete control over affected systems – “basically the worst it gets,” researchers said at the time. In March 2020, researchers disclosed a zero-day vulnerability in Zoho’s ManageEngine Desktop Central, an endpoint management tool to help users manage their servers, laptops, smartphones and more from a central location. “These don’t always get the same attention as exploit docs with decoy content, but the variety of these web-facing services gives actors lots of options.”
“Ultimately, this underscores the threat posed to internet-facing applications,” Matt Dahl, principal intelligence analyst for Crowdstrike, noted. It is, in other words, a powerful, highly privileged application which can act as a convenient point-of-entry to areas deep inside an enterprise’s footprint, for both users and attackers alike.
#Manageengine password manager pro api plus#
The Zoho ManageEngine ADSelfService Plus is a self-service password management and single sign-on (SSO) solution for AD and cloud apps, meaning that any cyberattacker able to take control of the platform would have multiple pivot points into both mission-critical apps (and their sensitive data) and other parts of the corporate network via AD. The issue affects builds 6113 and below (the fixed version is 6114).
#Manageengine password manager pro api Patch#
Zoho issued a patch on Tuesday, and CISA warned that admins should not only apply it immediately, but also ensure in general that ADSelfService Plus is not directly accessible from the internet. The issue (CVE-2021-40539) has been actively exploited in the wild as a zero-day, according to the Cybersecurity and Infrastructure Security Agency (CISA). A critical security vulnerability in the Zoho ManageEngine ADSelfService Plus platform could allow remote attackers to bypass authentication and have free rein across users’ Active Directory (AD) and cloud accounts.
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