Published:2021/10/29  Last Updated:2021/11/30

JVN#69304877
Multiple vulnerabilities in CLUSTERPRO X and EXPRESSCLUSTER X

Overview

CLUSTERPRO X and EXPRESSCLUSTER X provided by NEC Corporation contain multiple vulnerabilities.

Products Affected

  • CLUSTERPRO X 4.3 for Windows and earlier
  • EXPRESSCLUSTER X 4.3 for Windows and earlier
  • CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier
  • EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier

Description

CLUSTERPRO X and EXPRESSCLUSTER X provided by NEC Corporation contain multiple vulnerabilities listed below.

  • Buffer overflow in the Disk Agent (CWE-119) - CVE-2021-20700、CVE-2021-20701
    CVSS v3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Base Score: 9.8
    CVSS v2 AV:N/AC:L/Au:N/C:C/I:C/A:C Base Score: 10.0
  • Buffer overflow in the Transaction Server (CWE-119) - CVE-2021-20702、CVE-2021-20703
    CVSS v3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Base Score: 9.8
    CVSS v2 AV:N/AC:L/Au:N/C:C/I:C/A:C Base Score: 10.0
  • Buffer overflow in the compatible API with previous versions (Ver 8.0 and earlier) (CWE-119) - CVE-2021-20704
    CVSS v3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Base Score: 9.8
    CVSS v2 AV:N/AC:L/Au:N/C:C/I:C/A:C Base Score: 10.0
  • Remote file upload in the WebManager (CWE-20) - CVE-2021-20705、CVE-2021-20706
    CVSS v3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Base Score: 7.5
    CVSS v2 AV:N/AC:L/Au:N/C:N/I:C/A:N Base Score: 7.8
  • Read files in the Transaction Server (CWE-20) - CVE-2021-20707
    CVSS v3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Base Score: 7.5
    CVSS v2 AV:N/AC:L/Au:N/C:C/I:N/A:N Base Score: 7.8

Impact

  • Receiving a specially crafted packet sent by a remote attacker may allow arbitrary code execution  - CVE-2021-20700, CVE-2021-20701, CVE-2021-20702, CVE-2021-20703, CVE-2021-20704
  • A specially crafted upload request sent by a remote attacker may be accepted - CVE-2021-20705, CVE-2021-20706
  • Receiving specially crafted packet sent by a remote attacker may allow an arbitrary file being read - CVE-2021-20707

Solution

Update the software
Update the software to the latest version according to the information provided by the developer.
The developer has released the following updates for CLUSTERPRO X and EXPRESSCLUSTER X that address the vulnerabilities.

  • CLUSTERPRO X 4.3 for Windows additional update (CPRO-XWA40-13)
  • CLUSTERPRO X SingleServerSafe 4.3 for Windows additional update (CPRO-XWA40-13)
Apply Workarounds
Apply the following workarounds to avoid the impacts of these vulnerabilities.
  • Enable a firewall and block unnecesary communication
    • Allow only hosts belonging to the cluster to accept connection requests for the following ports:
      • Data transfer (Default: 29002)
      • Communication between disk agents (Default: 29004)
    • Allow only trusted clients to accept connection requests for the following port:
      • HTTP port of WebManager (Default: 29003)
    • Allow only local hosts to accept connection requests for the process clpoldapi.exe

Vendor Status

Vendor Status Last Update Vendor Notes
NEC Corporation Vulnerable 2021/10/29

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Credit

NEC Corporation reported these vulnerabilities to JPCERT/CC to notify users of the solutions through JVN. JPCERT/CC and NEC Corporation coordinated under the Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2021-20700
CVE-2021-20701
CVE-2021-20702
CVE-2021-20703
CVE-2021-20704
CVE-2021-20705
CVE-2021-20706
CVE-2021-20707
JVN iPedia JVNDB-2021-000097

Update History

2021/11/10
Information under the section [Products Affected] and [Solution] was updated.
2021/11/30
Information under the section [Products Affected] and [Solution] was updated.