RHEL 8：python39: 3.9 和 python39-devel: 3.9 (RHSA-2021: 4160)
critical Nessus Plugin ID 155200
語系：
概要
遠端 Red Hat 主機缺少一個或多個安全性更新。說明
遠端 Redhat Enterprise Linux 8 主機上安裝的套件受到 RHSA-2021: 4160 公告中提及的多個弱點影響。- python-lxml：遺漏對 formaction HTML5 屬性的輸入清理可能導致 XSS (CVE-2021-28957)
- python-ipaddress：對八進位字串的輸入驗證不當 (CVE-2021-29921)
- python-urllib3: 剖析 URL 的授權部分時存在 ReDoS 弱點 (CVE-2021-33503)
- python：藉由 pydoc 造成資訊洩漏 (CVE-2021-3426)
- python-pip：未正確處理 git 參照中的 unicode 分隔符號 (CVE-2021-3572)
- python：urllib: AbstractBasicAuthHandler 中的規則運算式 DoS (CVE-2021-3733)
- 在 python 中發現一個缺陷。由於未正確處理 Python HTTP 用戶端程式碼中的 HTTP 回應，這就允許能夠控制 HTTP 伺服器的遠端攻擊者使用戶端指令碼進入無限迴圈，進而消耗 CPU 時間。此弱點對系統可用性威脅最大。(CVE-2021-3737)
請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼。
解決方案
更新受影響的套件。另請參閱
http://www.nessus.org/u?4e591c02
http://www.nessus.org/u?7240878e
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/errata/RHSA-2021:4160
https://bugzilla.redhat.com/show_bug.cgi?id=1935913
https://bugzilla.redhat.com/show_bug.cgi?id=1941534
https://bugzilla.redhat.com/show_bug.cgi?id=1957458
https://bugzilla.redhat.com/show_bug.cgi?id=1962856
https://bugzilla.redhat.com/show_bug.cgi?id=1968074
Plugin 詳細資訊
嚴重性: Critical
ID: 155200
檔案名稱: redhat-RHSA-2021-4160.nasl
版本: 1.10
類型: local
代理程式: unix
已發布: 2021/11/11
已更新: 2024/4/28
支援的感應器: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
風險資訊
VPR
風險因素: Medium
分數: 6.7
CVSS v2
風險因素: High
基本分數: 7.5
時間分數: 5.9
媒介: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS 評分資料來源: CVE-2021-29921
CVSS v3
風險因素: Critical
基本分數: 9.8
時間分數: 8.8
媒介: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
時間媒介: CVSS:3.0/E:P/RL:O/RC:C
弱點資訊
CPE: p-cpe:/a:redhat:enterprise_linux:python-iniconfig, p-cpe:/a:redhat:enterprise_linux:python-requests, p-cpe:/a:redhat:enterprise_linux:python39-cython, p-cpe:/a:redhat:enterprise_linux:python39-attrs, p-cpe:/a:redhat:enterprise_linux:python39-mod_wsgi, p-cpe:/a:redhat:enterprise_linux:python39-packaging, p-cpe:/a:redhat:enterprise_linux:python39-pyparsing, p-cpe:/a:redhat:enterprise_linux:python39-pytest, p-cpe:/a:redhat:enterprise_linux:python39-setuptools, p-cpe:/a:redhat:enterprise_linux:python-packaging, p-cpe:/a:redhat:enterprise_linux:python-ply, p-cpe:/a:redhat:enterprise_linux:python-psutil, p-cpe:/a:redhat:enterprise_linux:python39-cffi, p-cpe:/a:redhat:enterprise_linux:python39-cryptography, p-cpe:/a:redhat:enterprise_linux:python39-devel, p-cpe:/a:redhat:enterprise_linux:python39-lxml, p-cpe:/a:redhat:enterprise_linux:python39-numpy-doc, p-cpe:/a:redhat:enterprise_linux:python39-pyyaml, p-cpe:/a:redhat:enterprise_linux:python39-wheel, p-cpe:/a:redhat:enterprise_linux:python3x-setuptools, p-cpe:/a:redhat:enterprise_linux:python39, p-cpe:/a:redhat:enterprise_linux:python39-iniconfig, p-cpe:/a:redhat:enterprise_linux:python39-ply, p-cpe:/a:redhat:enterprise_linux:python39-requests, p-cpe:/a:redhat:enterprise_linux:python39-tkinter, p-cpe:/a:redhat:enterprise_linux:python3x-pip, p-cpe:/a:redhat:enterprise_linux:pyyaml, p-cpe:/a:redhat:enterprise_linux:python-pymysql, p-cpe:/a:redhat:enterprise_linux:python-wcwidth, p-cpe:/a:redhat:enterprise_linux:python39-idle, p-cpe:/a:redhat:enterprise_linux:python39-chardet, p-cpe:/a:redhat:enterprise_linux:python39-idna, p-cpe:/a:redhat:enterprise_linux:python39-pluggy, p-cpe:/a:redhat:enterprise_linux:python39-psycopg2-tests, p-cpe:/a:redhat:enterprise_linux:python39-pysocks, p-cpe:/a:redhat:enterprise_linux:python39-urllib3, p-cpe:/a:redhat:enterprise_linux:scipy, p-cpe:/a:redhat:enterprise_linux:pybind11, p-cpe:/a:redhat:enterprise_linux:python-lxml, p-cpe:/a:redhat:enterprise_linux:python39-numpy, p-cpe:/a:redhat:enterprise_linux:python39-psycopg2-doc, p-cpe:/a:redhat:enterprise_linux:python39-py, p-cpe:/a:redhat:enterprise_linux:python39-rpm-macros, p-cpe:/a:redhat:enterprise_linux:python39-wcwidth, p-cpe:/a:redhat:enterprise_linux:python39-wheel-wheel, p-cpe:/a:redhat:enterprise_linux:cython, p-cpe:/a:redhat:enterprise_linux:numpy, p-cpe:/a:redhat:enterprise_linux:python-toml, p-cpe:/a:redhat:enterprise_linux:python39-debug, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:python-cffi, p-cpe:/a:redhat:enterprise_linux:python-idna, p-cpe:/a:redhat:enterprise_linux:python-urllib3, p-cpe:/a:redhat:enterprise_linux:python39-libs, p-cpe:/a:redhat:enterprise_linux:python39-numpy-f2py, p-cpe:/a:redhat:enterprise_linux:python39-pip, p-cpe:/a:redhat:enterprise_linux:python-more-itertools, p-cpe:/a:redhat:enterprise_linux:python-pysocks, p-cpe:/a:redhat:enterprise_linux:python39-more-itertools, p-cpe:/a:redhat:enterprise_linux:python39-pip-wheel, p-cpe:/a:redhat:enterprise_linux:python39-setuptools-wheel, p-cpe:/a:redhat:enterprise_linux:python3x-pyparsing, p-cpe:/a:redhat:enterprise_linux:python39-pybind11-devel, p-cpe:/a:redhat:enterprise_linux:pytest, p-cpe:/a:redhat:enterprise_linux:python-cryptography, p-cpe:/a:redhat:enterprise_linux:python39-pycparser, p-cpe:/a:redhat:enterprise_linux:python-attrs, p-cpe:/a:redhat:enterprise_linux:python-py, p-cpe:/a:redhat:enterprise_linux:python39-scipy, p-cpe:/a:redhat:enterprise_linux:python39-six, p-cpe:/a:redhat:enterprise_linux:python39-toml, p-cpe:/a:redhat:enterprise_linux:python-pluggy, p-cpe:/a:redhat:enterprise_linux:python-pycparser, p-cpe:/a:redhat:enterprise_linux:python39-psycopg2, p-cpe:/a:redhat:enterprise_linux:python39-test, p-cpe:/a:redhat:enterprise_linux:mod_wsgi, p-cpe:/a:redhat:enterprise_linux:python-chardet, p-cpe:/a:redhat:enterprise_linux:python-psycopg2, p-cpe:/a:redhat:enterprise_linux:python-wheel, p-cpe:/a:redhat:enterprise_linux:python39-pymysql, p-cpe:/a:redhat:enterprise_linux:python39-psutil, p-cpe:/a:redhat:enterprise_linux:python39-pybind11, p-cpe:/a:redhat:enterprise_linux:python3x-six
必要的 KB 項目: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
可被惡意程式利用: true
可輕鬆利用: Exploits are available
修補程式發佈日期: 2021/11/9
弱點發布日期: 2021/3/21
參考資訊
CVE: CVE-2021-28957, CVE-2021-29921, CVE-2021-33503, CVE-2021-3426, CVE-2021-3572, CVE-2021-3733, CVE-2021-3737