CVE-2022-40977: A path traversal vulnerability was discovered in Pilz PASvisu Server before 1.12.0
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HIGH 7.5REMOTEUPGRADEUPGRADEUPGRADE
CVE-2022-40977 is a high-severity flaw (CVSS 7.5) affecting pasvisu, pmi v507 firmware, pmi v512 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A path traversal vulnerability was discovered in Pilz PASvisu Server before 1.12.0. An unauthenticated remote attacker could use a zipped, malicious configuration file to trigger arbitrary file writes ('zip-slip'). File writes do not affect confidentiality or availability.
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
pilz pmi v507 firmware UPGRADE
Affected: <= 1.3.58
Fixed in: newer than 1.3.58
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
pilz pmi v512 firmware UPGRADE
Affected: <= 1.3.58
Fixed in: newer than 1.3.58
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
pilz pmi v704e firmware UPGRADE
Affected: < 2.2.0
Fixed in: 2.2.0
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
pilz pmi v707e firmware UPGRADE
Affected: < 2.2.0
Fixed in: 2.2.0
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
pilz pmi v807 firmware UPGRADE
Affected: < 1.6.102
Fixed in: 1.6.102
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official sourceNVD · 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-2022-40977?
pasvisu: upgrade to 1.12.0; pmi v507 firmware: upgrade to newer than 1.3.58; pmi v512 firmware: upgrade to newer than 1.3.58. Exact commands for each OS are on this page.
Is CVE-2022-40977 being exploited?
CVE-2022-40977 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-2022-40977 affect?
CVE-2022-40977 affects pasvisu, pmi v507 firmware, pmi v512 firmware. Severity is high (CVSS 7.5). A path traversal vulnerability was discovered in Pilz PASvisu Server before 1.12.0. An unauthenticated remote attacker could use a zipped, malicious configuration file to trigger arbitrary file writes ('zip-slip'). File writes do not affect
How urgent is CVE-2022-40977?
Priority 46/100. High severity; Remotely exploitable, no login, no user action
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