CVE-2023-40587
Pyramid Null Byte Path Traversal Vulnerability
Description
Pyramid is an open source Python web framework. A path traversal vulnerability in Pyramid versions 2.0.0 and 2.0.1 impacts users of Python 3.11 that are using a Pyramid static view with a full filesystem path and have a `index.html` file that is located exactly one directory above the location of the static view's file system path. No further path traversal exists, and the only file that could be disclosed accidentally is `index.html`. Pyramid version 2.0.2 rejects any path that contains a null-byte out of caution. While valid in directory/file names, we would strongly consider it a mistake to use null-bytes in naming files/directories. Secondly, Python 3.11, and 3.12 has fixed the underlying issue in `os.path.normpath` to no longer truncate on the first `0x00` found, returning the behavior to pre-3.11 Python, un an as of yet unreleased version. Fixes will be available in:Python 3.12.0rc2 and 3.11.5. Some workarounds are available. Use a version of Python 3 that is not affected, downgrade to Python 3.10 series temporarily, or wait until Python 3.11.5 is released and upgrade to the latest version of Python 3.11 series.
INFO
Published Date :
Aug. 25, 2023, 9:15 p.m.
Last Modified :
Feb. 16, 2024, 6:43 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
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-2023-40587.
| URL | Resource |
|---|---|
| https://github.com/Pylons/pyramid/commit/347d7750da6f45c7436dd0c31468885cc9343c85 | Patch |
| https://github.com/Pylons/pyramid/security/advisories/GHSA-j8g2-6fc7-q8f8 | Patch Vendor Advisory |
| https://github.com/python/cpython/issues/106242 | Issue Tracking Third Party Advisory |
| https://github.com/python/cpython/pull/106816 | Patch |
| https://lists.fedoraproject.org/archives/list/[email protected]/message/LYSDTQ7NP5GHPQ7HBE47MBJQK7YEIYMF/ | Mailing List |
| https://lists.fedoraproject.org/archives/list/[email protected]/message/OQIPHQTM3XE5NIEXCTQFV2J2RK2YUSMT/ | Mailing List |
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-40587 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-40587 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 -
Modified Analysis by [email protected]
Feb. 16, 2024
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/LYSDTQ7NP5GHPQ7HBE47MBJQK7YEIYMF/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/LYSDTQ7NP5GHPQ7HBE47MBJQK7YEIYMF/ Mailing List Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/OQIPHQTM3XE5NIEXCTQFV2J2RK2YUSMT/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/OQIPHQTM3XE5NIEXCTQFV2J2RK2YUSMT/ Mailing List Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 15, 2023
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/LYSDTQ7NP5GHPQ7HBE47MBJQK7YEIYMF/ [No Types Assigned] -
CVE Modified by [email protected]
Sep. 05, 2023
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/OQIPHQTM3XE5NIEXCTQFV2J2RK2YUSMT/ [No Types Assigned] -
Initial Analysis by [email protected]
Aug. 31, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Changed Reference Type https://github.com/Pylons/pyramid/commit/347d7750da6f45c7436dd0c31468885cc9343c85 No Types Assigned https://github.com/Pylons/pyramid/commit/347d7750da6f45c7436dd0c31468885cc9343c85 Patch Changed Reference Type https://github.com/Pylons/pyramid/security/advisories/GHSA-j8g2-6fc7-q8f8 No Types Assigned https://github.com/Pylons/pyramid/security/advisories/GHSA-j8g2-6fc7-q8f8 Patch, Vendor Advisory Changed Reference Type https://github.com/python/cpython/issues/106242 No Types Assigned https://github.com/python/cpython/issues/106242 Issue Tracking, Third Party Advisory Changed Reference Type https://github.com/python/cpython/pull/106816 No Types Assigned https://github.com/python/cpython/pull/106816 Patch Added CWE NIST CWE-22 Added CPE Configuration OR *cpe:2.3:a:agendaless:pyramid:*:*:*:*:*:python:*:* versions from (including) 2.0 up to (excluding) 2.0.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-40587 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-2023-40587
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.09 }} 0.02%
score
0.39702
percentile