CVE-2021-42370: A password mismanagement situation exists in XoruX LPAR2RRD and STOR2RRD before 7.30 because cleartext informa

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HIGH 7.5REMOTEUPGRADEUPGRADE

CVE-2021-42370 is a high-severity flaw (CVSS 7.5) affecting lpar2rrd, stor2rrd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A password mismanagement situation exists in XoruX LPAR2RRD and STOR2RRD before 7.30 because cleartext information is present in HTML password input fields in the device properties. (Viewing the passwords requires configuring a web browser to display HTML password input fields.)

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-312
Published	2021-11-08
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: xorux

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-11-08 05:15 UTCPublished CVE record published
2026-06-17 04:09 UTCUpdated Record last modified

xorux lpar2rrd UPGRADE

Affected: >= 7.21 and < 7.30

Fixed in: 7.30

Safe to downgrade to: a release before 7.21

1. Check installed version

apt-cache policy lpar2rrd || rpm -q lpar2rrd || lpar2rrd --version

2. UPGRADE to 7.30 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade lpar2rrd

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade lpar2rrd

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 7.21 (Debian / Ubuntu)

apt-cache madison lpar2rrd sudo apt install lpar2rrd=<VERSION_BEFORE_7.21> sudo apt-mark hold lpar2rrd

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list lpar2rrd sudo dnf downgrade lpar2rrd-<VERSION_BEFORE_7.21> sudo dnf versionlock add lpar2rrd

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

xorux stor2rrd UPGRADE

Affected: >= 7.21 and < 7.30

Fixed in: 7.30

Safe to downgrade to: a release before 7.21

1. Check installed version

apt-cache policy stor2rrd || rpm -q stor2rrd || stor2rrd --version

2. UPGRADE to 7.30 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade stor2rrd

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade stor2rrd

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 7.21 (Debian / Ubuntu)

apt-cache madison stor2rrd sudo apt install stor2rrd=<VERSION_BEFORE_7.21> sudo apt-mark hold stor2rrd

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list stor2rrd sudo dnf downgrade stor2rrd-<VERSION_BEFORE_7.21> sudo dnf versionlock add stor2rrd

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-42370?

lpar2rrd: upgrade to 7.30; stor2rrd: upgrade to 7.30. Exact commands for each OS are on this page.

Is CVE-2021-42370 being exploited?

CVE-2021-42370 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-42370 affect?

CVE-2021-42370 affects lpar2rrd, stor2rrd. Severity is high (CVSS 7.5). A password mismanagement situation exists in XoruX LPAR2RRD and STOR2RRD before 7.30 because cleartext information is present in HTML password input fields in the device properties. (Viewing the passwords requires configuring a web browser

How urgent is CVE-2021-42370?

Priority 45/100. High severity; Remotely exploitable, no login, no user action

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References

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