Sunday, July 4, 2021

CVE-2021-34807

Description

An open redirect vulnerability exists in the /preauth Servlet in Zimbra Collaboration Suite through 9.0. To exploit the vulnerability, an attacker would need to have obtained a valid zimbra auth token or a valid preauth token. Once the token is obtained, an attacker could redirect a user to any URL via isredirect=1&redirectURL= in conjunction with the token data (e.g., a valid authtoken= value).

References to Advisories, Solutions, and Tools


References to Advisories, Solutions, and Tools

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Resourcehttps://wiki.zimbra.com/wiki/Security_Centerhttps://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P23https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P16https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
 

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