Vulnerability database
Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.
3 results
May 7, 2024Incomplete fix for CVE-2024-1929 The problem with CVE-2024-1929 was that the dnf5 D-Bus daemon accepted arbitrary configuration parameters from unprivileged usCVE-2024-2746 · Other software · Fedora · reported by Red HatHigh 8.8
Incomplete fix for CVE-2024-1929 The problem with CVE-2024-1929 was that the dnf5 D-Bus daemon accepted arbitrary configuration parameters from unprivileged users, which allowed a local root exploit by tricking the daemon into loading a user controlled "plugin". All of this happened before Polkit authentication was even started. The dnf5 library code does not check whether non-root users control the directory in question. On one hand, this poses a Denial-of-Service attack vector by making the daemonoperate on a blocking file (e.g. named FIFO special file) or a very large file that causes an out-of-memory situation (e.g. /dev/zero). On the other hand, this can be used to let the daemon process privileged files like /etc/shadow. The file in question is parsed as an INI file. Error diagnostics resulting from parsing privileged files could cause information leaks, if these diagnostics are accessible to unprivileged users. In the case of libdnf5, no such user accessible diagnostics should exist, though. Also, a local attacker can place a valid repository configuration file in this directory. This configuration file allows to specify a plethora of additional configuration options. T
- Product
- dnf5daemon-server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordopenwall.comopenwall.com
May 7, 2024No Limit on Number of Open Sessions / Bad Session Close Behaviour in dnf5daemon-server before 5.1.17 allows a malicious user to impact Availability via No LimiCVE-2024-1930 · Other software · Fedora · reported by patrick@puiterwijk.orgMedium 6.5
No Limit on Number of Open Sessions / Bad Session Close Behaviour in dnf5daemon-server before 5.1.17 allows a malicious user to impact Availability via No Limit on Number of Open Sessions. There is no limit on how many sessions D-Bus clients may create using the `open_session()` D-Bus method. For each session a thread is created in dnf5daemon-server. This spends a couple of hundred megabytes of memory in the process. Further connections will become impossible, likely because no more threads can be spawned by the D-Bus service.
- Product
- dnf5daemon-server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordopenwall.comopenwall.com
May 7, 2024Local Root Exploit via Configuration Dictionary in dnf5daemon-server before 5.1.17 allows a malicious user to impact Confidentiality and Integrity via ConfigurCVE-2024-1929 · Other software · Fedora · reported by patrick@puiterwijk.orgHigh 7.5
Local Root Exploit via Configuration Dictionary in dnf5daemon-server before 5.1.17 allows a malicious user to impact Confidentiality and Integrity via Configuration Dictionary. There are issues with the D-Bus interface long before Polkit is invoked. The `org.rpm.dnf.v0.SessionManager.open_session` method takes a key/value map of configuration entries. A sub-entry in this map, placed under the "config" key, is another key/value map. The configuration values found in it will be forwarded as configuration overrides to the `libdnf5::Base` configuration. Practically all libdnf5 configuration aspects can be influenced here. Already when opening the session via D-Bus, the libdnf5 will be initialized using these override configuration values. There is no sanity checking of the content of this "config" map, which is untrusted data. It is possible to make the library loading a plug-in shared library under control of an unprivileged user, hence achieving root access.
- Product
- dnf5daemon-server
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordopenwall.comopenwall.com
Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.
Weekly security brief
The flaws that hit local websites, every Friday.
One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.
Tell us what you're building.
A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.
Not ready to talk yet? Run the free website check and see what Google sees.