CVE-2022-47952
Lxc Failed File Existence Disclosure
Description
lxc-user-nic in lxc through 5.0.1 is installed setuid root, and may allow local users to infer whether any file exists, even within a protected directory tree, because "Failed to open" often indicates that a file does not exist, whereas "does not refer to a network namespace path" often indicates that a file exists. NOTE: this is different from CVE-2018-6556 because the CVE-2018-6556 fix design was based on the premise that "we will report back to the user that the open() failed but the user has no way of knowing why it failed"; however, in many realistic cases, there are no plausible reasons for failing except that the file does not exist.
INFO
Published Date :
Jan. 1, 2023, 6:15 a.m.
Last Modified :
Aug. 21, 2023, 11:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
1.4
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2022-47952 has a 3 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-47952.
| URL | Resource |
|---|---|
| https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591/comments/45 | Issue Tracking Vendor Advisory |
| https://github.com/MaherAzzouzi/CVE-2022-47952 | Third Party Advisory |
| https://github.com/lxc/lxc/blob/0b83d71c2c8f3bac9503f894cd84584f79258bb3/lxc.spec.in#L274 | Third Party Advisory |
| https://github.com/lxc/lxc/blob/0b83d71c2c8f3bac9503f894cd84584f79258bb3/src/lxc/cmd/lxc_user_nic.c#L1085-L1104 | Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2023/08/msg00025.html |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
None
LXC Information Disclosure vulnerability.
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-47952 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-47952 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Aug. 21, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/08/msg00025.html [No Types Assigned] -
CWE Remap by [email protected]
Aug. 08, 2023
Action Type Old Value New Value Changed CWE CWE-668 CWE-203 -
Initial Analysis by [email protected]
Jan. 09, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Changed Reference Type https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591/comments/45 No Types Assigned https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591/comments/45 Issue Tracking, Vendor Advisory Changed Reference Type https://github.com/lxc/lxc/blob/0b83d71c2c8f3bac9503f894cd84584f79258bb3/lxc.spec.in#L274 No Types Assigned https://github.com/lxc/lxc/blob/0b83d71c2c8f3bac9503f894cd84584f79258bb3/lxc.spec.in#L274 Third Party Advisory Changed Reference Type https://github.com/lxc/lxc/blob/0b83d71c2c8f3bac9503f894cd84584f79258bb3/src/lxc/cmd/lxc_user_nic.c#L1085-L1104 No Types Assigned https://github.com/lxc/lxc/blob/0b83d71c2c8f3bac9503f894cd84584f79258bb3/src/lxc/cmd/lxc_user_nic.c#L1085-L1104 Third Party Advisory Changed Reference Type https://github.com/MaherAzzouzi/CVE-2022-47952 No Types Assigned https://github.com/MaherAzzouzi/CVE-2022-47952 Third Party Advisory Added CWE NIST CWE-668 Added CPE Configuration OR *cpe:2.3:a:linuxcontainers:lxc:*:*:*:*:*:*:*:* versions up to (including) 5.0.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-47952 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-47952
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile