CyberRota Analysis
AI-GeneratedZammad's inbound PGP email processing prior to version 7.0.2 is vulnerable due to the silent discarding of the gpg verification return value, allowing attackers to manipulate email content while misleading users with a false "Good signature" status. This flaw compromises the integrity and authenticity of messages, potentially leading to trust in forged or tampered communications. Organizations using Zammad for customer support should prioritize upgrading to version 7.0.2 to mitigate this significant security risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, summary In Zammad's inbound PGP email processing, the return value of the gpg verification call was silently discarded. Regardless of whether gpg reported a valid, invalid, or missing signature, the handler unconditionally wrote sign: { success: true, comment: "Good signature" } to the article's security preferences. Impact Any sender could tamper with the body of a multipart/signed PGP email, or craft a message with an entirely fabricated or mismatched signature, and Zammad would display it to the recipient as cryptographically verified with a "Good signature" label. Users and agents relying on Zammad's signature indicator to confirm message authenticity and integrity would be misled into trusting modified or forged content. The vulnerability affects all inbound PGP-signed emails processed while the PGP integration is enabled. This issue is fixed in version 7.0.2.