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Q1What is this vulnerability? (Essence + Consequences)
π¨ **Essence**: Arbitrary Code Execution via `irccd.exe` service. π **Consequences**: Attackers can run malicious code remotely. The flaw lies in input validation for the `RunProgram` function on TCP port 6542.
Q2Root Cause? (CWE/Flaw)
π‘οΈ **Root Cause**: Input Validation Flaw. The service fails to properly sanitize inputs passed to the `RunProgram` function, allowing arbitrary command execution.
Q3Who is affected? (Versions/Components)
π― **Affected**: EMC Replication Manager Client (v5.3 and earlier) & NetWorker Module. Specifically targets Microsoft Applications 2.1.x and 2.2.x versions.
Q4What can hackers do? (Privileges/Data)
π **Impact**: Remote Code Execution (RCE). Hackers gain the ability to execute arbitrary code on the victim's system with the privileges of the service account.
Q5Is exploitation threshold high? (Auth/Config)
β‘ **Threshold**: LOW. It is a **Remote** vulnerability. No authentication is mentioned. Attackers just need network access to TCP port 6542.
Q6Is there a public Exp? (PoC/Wild Exploitation)
π’ **Exploit Status**: Yes. References include SecurityFocus BID 46235, Secunia 43164, and Vupen ADV-2011-0304. Public advisories confirm exploitation capability.
Q7How to self-check? (Features/Scanning)
π **Self-Check**: Scan for open TCP port **6542**. Check for the presence of `irccd.exe` service. Verify if EMC Replication Manager Client version is < 5.3.
Q8Is it fixed officially? (Patch/Mitigation)
π§ **Fix**: Official patches exist. Upgrade EMC Replication Manager Client to version **5.3 or later**. Update NetWorker Module components accordingly.
Q9What if no patch? (Workaround)
π§ **No Patch?**: Block TCP port 6542 at the firewall. Restrict network access to the `irccd.exe` service. Disable the service if not needed.
Q10Is it urgent? (Priority Suggestion)
π₯ **Urgency**: HIGH. This is a critical RCE vulnerability with low exploitation barriers. Patch immediately or isolate the service from untrusted networks.