CVE-2021-42371Public exploitNetwork attack vector

Remote server access via hardcoded service account

Published Nov 8, 2021 · Updated Aug 4, 2024

Hardcoded credentials in XoruX LPAR2RRD and STOR2RRD before 7.30 allow remote attackers to open an SSH session to the server. Affected appliances assign a static password to the lpar2rrd or stor2rrd service account and permit that account to connect remotely over SSH. No prior authentication or user interaction is required; successful access grants a shell with the service account's privileges and enables network pivoting.

CVSS severity9.8
Critical
EPSS probability1.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hardcoded credentials in XoruX LPAR2RRD and STOR2RRD before 7.30 allow remote attackers to open an SSH session to the server. Affected appliances assign a static password to the lpar2rrd or stor2rrd service account and permit that account to connect remotely over SSH. No prior authentication or user interaction is required; successful access grants a shell with the service account's privileges and enables network pivoting.

The record

CVE
CVE-2021-42371
Published
Nov 8, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-922, T1078.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 8, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8Orange CERT-CCCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-922Insecure Storage of Sensitive Information
T1078.001Default Accounts

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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