modsecurity rule to filter CVE-2021-44228/LogJam/Log4Shell [update]

As a fast workaround, a friend of mine made a modsecurity rule to filter CVE-2021-44228/LogJam/Log4Shell, which he allowed me to share with you. SecRule \   ARGS|REQUEST_HEADERS|REQUEST_URI|REQUEST_BODY|REQUEST_COOKIES|REQUEST_LINE|QUERY_STRING “jndi:ldap:” \   “phase:1, \   id:751001, \   t:none, \   deny, \   status:403, \   log, \   auditlog, \   msg:’Block: CVE-2021-44228 – deny pattern \”jndi:ldap:\”‘, \   severity:’5’, \   rev:1, \   tag:’no_ar'” New […]

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December 10, 2021
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Jitsi Workaround for CVE-2021-44228/LogJam/Log4Shell

You surely heard of the LogJam / Log4Shell / CVE-2021-44228 – if not, take a look at this blog post. If you’re running Jitsi is most likely vulnerable and as there is no fix currently, you need a workaround which I provide here for you. You need to add -Dlog4j2.formatMsgNoLookups=True at the correct places in […]

The post Jitsi Workaround for CVE-2021-44228/LogJam/Log4Shell first appeared on Robert Penz Blog.

December 10, 2021
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Proxmox Container with Debian 10 does not work after upgrade

I just did an apt update / upgrade of a Debian 10 container and restarted it afterwards and got following: # pct start 105 Job for pve-container@105.service failed because the control process exited with error code. See “systemctl status pve-container@105.service” and “journalctl -xe” for details. command ‘systemctl start pve-container@105’ failed: exit code 1 with a […]

The post Proxmox Container with Debian 10 does not work after upgrade first appeared on Robert Penz Blog.

September 8, 2019
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Howto visualize your water meter and get alerted if too much water is used

In the village I live the water meter is replaced every 5 years and it was the fifth’s year this year. I took the opportunity to talk to the municipal office, if it was possible to get a water meter with impulse module, which I can integrate in my network. And they said yes 🙂 […]

The post Howto visualize your water meter and get alerted if too much water is used first appeared on Robert Penz Blog.

May 1, 2019
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