CVE-2021-27651 — AI Deep Analysis Summary

🚨 **Essence**: A critical auth bypass in Pega Infinity. Hackers use the 'Reset Password' feature to skip local checks.…

🛡️ **Root Cause**: **CWE-287** (Improper Authentication). The flaw lies in the local account password reset logic. It allows attackers to bypass the intended security checks entirely.…

🏢 **Vendor**: Pegasystems. 📦 **Product**: Pega Infinity. 📅 **Affected Versions**: **8.2.1** through **8.5.2**. ⚠️ Any version in this range is vulnerable.

🕵️ **Privileges**: Attackers gain **Administrator** access. 📂 **Data**: They can access all data within the Pega instance.…

📉 **Threshold**: **LOW**. No authentication is needed initially. 🌐 **Config**: Requires only a valid victim email address (e.g., administrator@pega). The attack is simple: Initiate reset → Force POST request.…

🔓 **Public Exp**: **YES**. Multiple PoCs exist on GitHub (e.g., `samwcyo`, `Vulnmachines`, `orangmuda`). 🚀 **Wild Exploitation**: Active. Nuclei templates are available for automated scanning. Easy to exploit.

🔍 **Self-Check**: Use Nuclei template `CVE-2021-27651.yaml`. 🧪 **Manual Test**: Try resetting a password for a known admin email.…

🩹 **Official Fix**: Yes. Pega released a security advisory and hotfix matrix. 📝 **Reference**: Check `collaborate.pega.com` for the specific hotfix for your version. Update immediately to the patched version.

🚧 **No Patch?**: Restrict access to the password reset endpoint. 🛑 **Network**: Block external access to Pega login/reset pages via WAF or firewall.…

🔥 **Urgency**: **CRITICAL**. Priority: **P1**. 🚨 **Reason**: Unauthenticated RCE via simple logic bypass. ⏳ **Action**: Patch immediately. This is a high-impact, low-effort attack vector actively exploited in the wild.