CVE-2023-30861

一、漏洞信息
 漏洞编号：[CVE-2023-30861](https://nvd.nist.gov/vuln/detail/CVE-2023-30861)
 漏洞归属组件：[conmon](https://gitee.com/src-openeuler/conmon)
 漏洞归属的版本：2.0.2,2.1.0,2.1.2,2.1.5
 CVSS V3.0分值：
  BaseScore：7.5 High
  Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
 漏洞简述：
  Flask is a lightweight WSGI web application framework. When all of the following conditions are met, a response containing data intended for one client may be cached and subsequently sent by the proxy to other clients. If the proxy also caches `Set-Cookie` headers, it may send one client s `session` cookie to other clients. The severity depends on the application s use of the session and the proxy s behavior regarding cookies. The risk depends on all these conditions being met.1. The application must be hosted behind a caching proxy that does not strip cookies or ignore responses with cookies.2. The application sets `session.permanent = True`3. The application does not access or modify the session at any point during a request.4. `SESSION_REFRESH_EACH_REQUEST` enabled (the default).5. The application does not set a `Cache-Control` header to indicate that a page is private or should not be cached.This happens because vulnerable versions of Flask only set the `Vary: Cookie` header when the session is accessed or modified, not when it is refreshed (re-sent to update the expiration) without being accessed or modified. This issue has been fixed in versions 2.3.2 and 2.2.5.
 漏洞公开时间：2023-05-03 02:15:52
 漏洞创建时间：2025-09-16 20:22:13
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2023-30861
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
|  | https://github.com/pallets/flask |  |
|  | https://github.com/advisories/GHSA-m2qf-hxjv-5gpq |  |
|  | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b |  |
|  | https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 |  |
|  | https://github.com/pallets/flask/releases/tag/2.2.5 |  |
|  | https://github.com/pallets/flask/releases/tag/2.3.2 |  |
|  | https://github.com/pallets/flask/security/advisories/GHSA-m2qf-hxjv-5gpq |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2023-30861 |  |
|  | https://www.mend.io/vulnerability-database/CVE-2023-30861 |  |
|  | https://github.com/pallets/flask/pull/5109 |  |
|  | https://flask.palletsprojects.com/en/2.3.x/api/#flask.session.permanent |  |
|  | https://security-tracker.debian.org/tracker/CVE-2023-30861 |  |
|  | https://github.com/advisories/GHSA-m2qf-hxjv-5gpq |  |
|  | https://cxsecurity.com/cveshow/CVE-2023-30861/ |  |
|  | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-30861 |  |
|  | https://github.com/pallets/flask/commit/8646edca6f47e2cd57464081b3911218d4734f8d |  |
|  | https://github.com/pallets/flask/commit/8705dd39c4fa563ea0fe0bf84c85da8fcc98b88d |  |
|  | https://bugzilla.redhat.com/show_bug.cgi?id=2196643 |  |
|  | https://www.cve.org/CVERecord?id=CVE-2023-30861 |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | http://people.ubuntu.com/~ubuntu-security/cve/CVE-2023-30861 |  |
|  | https://www.auscert.org.au/bulletins/ESB-2023.2987 |  |
|  | https://lists.suse.com/pipermail/sle-security-updates/2023-May/014935.html |  |
|  | https://www.suse.com/support/update/announcement/2023/suse-su-20232263-1/ |  |
|  | https://www.suse.com/support/security/rating/ |  |
|  | https://www.suse.com/security/cve/CVE-2023-30861.html |  |
|  | https://lists.suse.com/pipermail/sle-security-updates/2023-May/014934.html |  |
|  | https://www.suse.com/support/update/announcement/2023/suse-su-20232264-1/ |  |
|  | https://bugzilla.suse.com/1211246 |  |
|  | https://www.suse.com/security/cve/CVE-2023-30861/ |  |
|  | https://www.suse.com/support/security/rating/ |  |
|  | https://www.suse.com/security/cve/CVE-2023-30861.html |  |
|  | https://lists.suse.com/pipermail/sle-security-updates/2023-May/014934.html |  |
|  | https://www.suse.com/support/update/announcement/2023/suse-su-20232264-1/ |  |
|  | https://bugzilla.suse.com/1211246 |  |
|  | https://www.suse.com/security/cve/CVE-2023-30861/ |  |
|  | https://ubuntu.com/security/notices/USN-6111-1 |  |
|  | https://github.com/pypa/advisory-database/tree/main/vulns/flask/PYSEC-2023-62.yaml |  |
|  | https://www.auscert.org.au/bulletins/ESB-2023.3216 |  |
|  | https://www.auscert.org.au/bulletins/ESB-2023.3280 |  |
|  | https://www.debian.org/security/2023/dsa-5442 |  |
|  | https://www.auscert.org.au/bulletins/ESB-2023.4128 |  |
|  | https://linux.oracle.com/cve/CVE-2023-30861.html |  |
|  | https://linux.oracle.com/errata/ELSA-2023-12710.html |  |
|  | https://security.netapp.com/advisory/ntap-20230818-0006/ |  |
|  | https://www.debian.org/lts/security/2023/dla-3536 |  |
|  | https://lists.debian.org/debian-lts-announce/2023/08/msg00024.html |  |
|  | https://www.oracle.com/security-alerts/cpuoct2023.html |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2023-30861 |  |
|  | https://www.debian.org/lts/security/2023/dla-3536 |  |
|  | https://www.auscert.org.au/bulletins/ESB-2023.7208 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
|  | https://www.oracle.com/security-alerts/cpujan2024.html |  |
|  | https://www.cve.org/CVERecord?id=CVE-2023-30861 |  |
|  | https://security.netapp.com/advisory/ntap-20230818-0006 |  |

</details>

漏洞分析指导链接：
  https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
 漏洞数据来源:
  其他
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
| pallets/flask |  | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b.patch |  | ljqc |
|  |  | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b |  | nvd |
|  |  | https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 |  | nvd |
|  |  | https://github.com/pallets/flask/pull/5109 |  | snyk |
|  |  | https://github.com/pallets/flask/commit/8646edca6f47e2cd57464081b3911218d4734f8d |  | ubuntu |
|  |  | https://github.com/pallets/flask/commit/8705dd39c4fa563ea0fe0bf84c85da8fcc98b88d |  | ubuntu |

</details>
 
二、漏洞分析结构反馈
 影响性分析说明：
  
 openEuler评分：
   
 受影响版本排查(受影响/不受影响)：
  1.master(2.1.12):
2.openEuler-20.03-LTS-SP4(2.0.2):
3.openEuler-22.03-LTS-SP3(2.1.0):
4.openEuler-22.03-LTS-SP4(2.1.0):
5.openEuler-24.03-LTS(2.1.10):
6.openEuler-24.03-LTS-Next(2.1.10):
7.openEuler-24.03-LTS-SP1(2.1.10):
8.openEuler-24.03-LTS-SP2(2.1.10):

修复是否涉及abi变化(是/否)：
  1.master(2.1.12):
2.openEuler-20.03-LTS-SP4(2.0.2):
3.openEuler-22.03-LTS-SP3(2.1.0):
4.openEuler-22.03-LTS-SP4(2.1.0):
5.openEuler-24.03-LTS(2.1.10):
6.openEuler-24.03-LTS-Next(2.1.10):
7.openEuler-24.03-LTS-SP1(2.1.10):
8.openEuler-24.03-LTS-SP2(2.1.10):

原因说明：
  1.master(2.1.12):
2.openEuler-20.03-LTS-SP4(2.0.2):
3.openEuler-22.03-LTS-SP3(2.1.0):
4.openEuler-22.03-LTS-SP4(2.1.0):
5.openEuler-24.03-LTS(2.1.10):
6.openEuler-24.03-LTS-Next(2.1.10):
7.openEuler-24.03-LTS-SP1(2.1.10):
8.openEuler-24.03-LTS-SP2(2.1.10):

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