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：[python-flask](https://gitee.com/src-openeuler/python-flask)
 漏洞归属的版本：1.0.4,1.1.2,2.1.2,2.2.5
 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：2023-05-03 02:13:33
 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 |
| ------- | -------- | -------- |
| security-advisories.github.com | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b |  |
| security-advisories.github.com | https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 |  |
| security-advisories.github.com | https://github.com/pallets/flask/releases/tag/2.2.5 |  |
| security-advisories.github.com | https://github.com/pallets/flask/releases/tag/2.3.2 |  |
| security-advisories.github.com | https://github.com/pallets/flask/security/advisories/GHSA-m2qf-hxjv-5gpq |  |
| security-advisories.github.com | https://lists.debian.org/debian-lts-announce/2023/08/msg00024.html |  |
| security-advisories.github.com | https://security.netapp.com/advisory/ntap-20230818-0006/ |  |
| security-advisories.github.com | https://www.debian.org/security/2023/dsa-5442 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-30861 | https://bugzilla.suse.com/show_bug.cgi?id=1211246 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2196643 | https://bugzilla.suse.com/show_bug.cgi?id=1211246 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2023-30861 | https://bugzilla.suse.com/show_bug.cgi?id=1211246 |
| suse_bugzilla | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b | https://bugzilla.suse.com/show_bug.cgi?id=1211246 |
| suse_bugzilla | https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 | https://bugzilla.suse.com/show_bug.cgi?id=1211246 |
| suse_bugzilla | https://github.com/pallets/flask/releases/tag/2.2.5 | https://bugzilla.suse.com/show_bug.cgi?id=1211246 |
| suse_bugzilla | https://github.com/pallets/flask/releases/tag/2.3.2 | https://bugzilla.suse.com/show_bug.cgi?id=1211246 |
| suse_bugzilla | https://github.com/pallets/flask/security/advisories/GHSA-m2qf-hxjv-5gpq | https://bugzilla.suse.com/show_bug.cgi?id=1211246 |
| redhat_bugzilla | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b | https://bugzilla.redhat.com/show_bug.cgi?id=2196643 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2023:3440 | https://bugzilla.redhat.com/show_bug.cgi?id=2196643 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2023:3444 | https://bugzilla.redhat.com/show_bug.cgi?id=2196643 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2023:3446 | https://bugzilla.redhat.com/show_bug.cgi?id=2196643 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2023:3525 | https://bugzilla.redhat.com/show_bug.cgi?id=2196643 |
| redhat_bugzilla | https://access.redhat.com/security/cve/cve-2023-30861 | https://bugzilla.redhat.com/show_bug.cgi?id=2196643 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2023:3536 | https://bugzilla.redhat.com/show_bug.cgi?id=2196643 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2023:3545 | https://bugzilla.redhat.com/show_bug.cgi?id=2196643 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2023:7341 | https://bugzilla.redhat.com/show_bug.cgi?id=2196643 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2023-30861 |
| oracle |  | https://www.oracle.com/security-alerts/cpujul2023.html |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2023-30861 |
| cve_search |  | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b |
| cve_search |  | https://github.com/pallets/flask/releases/tag/2.3.2 |
| cve_search |  | https://github.com/pallets/flask/releases/tag/2.2.5 |
| cve_search |  | https://github.com/pallets/flask/security/advisories/GHSA-m2qf-hxjv-5gpq |
| cve_search |  | https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 |
| cve_search |  | https://www.debian.org/security/2023/dsa-5442 |
| cve_search |  | https://security.netapp.com/advisory/ntap-20230818-0006/ |
| cve_search |  | https://lists.debian.org/debian-lts-announce/2023/08/msg00024.html |
| github_advisory | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b | https://github.com/advisories/GHSA-m2qf-hxjv-5gpq |
| github_advisory | https://github.com/pallets/flask/releases/tag/2.2.5 | https://github.com/advisories/GHSA-m2qf-hxjv-5gpq |
| github_advisory | https://github.com/pallets/flask/releases/tag/2.3.2 | https://github.com/advisories/GHSA-m2qf-hxjv-5gpq |
| github_advisory | https://github.com/pallets/flask/security/advisories/GHSA-m2qf-hxjv-5gpq | https://github.com/advisories/GHSA-m2qf-hxjv-5gpq |
| github_advisory | https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 | https://github.com/advisories/GHSA-m2qf-hxjv-5gpq |
| github_advisory | https://nvd.nist.gov/vuln/detail/CVE-2023-30861 | https://github.com/advisories/GHSA-m2qf-hxjv-5gpq |
| mageia |  | http://advisories.mageia.org/MGASA-2023-0193.html |
| osv | https://github.com/pallets/flask/security/advisories/GHSA-m2qf-hxjv-5gpq | https://osv.dev/vulnerability/GHSA-m2qf-hxjv-5gpq |
| osv | https://nvd.nist.gov/vuln/detail/CVE-2023-30861 | https://osv.dev/vulnerability/GHSA-m2qf-hxjv-5gpq |
| osv | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b | https://osv.dev/vulnerability/GHSA-m2qf-hxjv-5gpq |
| osv | https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 | https://osv.dev/vulnerability/GHSA-m2qf-hxjv-5gpq |
| osv | https://github.com/pallets/flask | https://osv.dev/vulnerability/GHSA-m2qf-hxjv-5gpq |
| osv | https://github.com/pallets/flask/releases/tag/2.2.5 | https://osv.dev/vulnerability/GHSA-m2qf-hxjv-5gpq |
| osv | https://github.com/pallets/flask/releases/tag/2.3.2 | https://osv.dev/vulnerability/GHSA-m2qf-hxjv-5gpq |
| amazon_linux_explore | https://access.redhat.com/security/cve/CVE-2023-30861 | https://explore.alas.aws.amazon.com/CVE-2023-30861.html |
| amazon_linux_explore | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-30861 | https://explore.alas.aws.amazon.com/CVE-2023-30861.html |
| snyk | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b | https://security.snyk.io/vuln/SNYK-PYTHON-FLASK-5490129 |
| snyk | https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 | https://security.snyk.io/vuln/SNYK-PYTHON-FLASK-5490129 |
| snyk | https://github.com/pallets/flask/pull/5109 | https://security.snyk.io/vuln/SNYK-PYTHON-FLASK-5490129 |
| snyk | https://github.com/pallets/flask/releases/tag/2.2.5 | https://security.snyk.io/vuln/SNYK-PYTHON-FLASK-5490129 |
| snyk | https://github.com/pallets/flask/releases/tag/2.3.2 | https://security.snyk.io/vuln/SNYK-PYTHON-FLASK-5490129 |
| snyk | https://flask.palletsprojects.com/en/2.3.x/api/#flask.session.permanent | https://security.snyk.io/vuln/SNYK-PYTHON-FLASK-5490129 |
| nvd | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b |  |
| nvd | https://github.com/pallets/flask/releases/tag/2.3.2 |  |
| nvd | https://github.com/pallets/flask/releases/tag/2.2.5 |  |
| nvd | https://github.com/pallets/flask/security/advisories/GHSA-m2qf-hxjv-5gpq |  |
| nvd | https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 |  |
| nvd | https://www.debian.org/security/2023/dsa-5442 |  |
| redhat | https://access.redhat.com/security/cve/CVE-2023-30861 |  |
| nvd | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b |  |
| nvd | https://github.com/pallets/flask/releases/tag/2.3.2 |  |
| nvd | https://github.com/pallets/flask/releases/tag/2.2.5 |  |
| nvd | https://github.com/pallets/flask/security/advisories/GHSA-m2qf-hxjv-5gpq |  |
| nvd | https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 |  |

</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:
  其它
 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  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b |  | security-advisories.github.com |
|  |  | https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 |  | security-advisories.github.com |
|  |  | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b |  | suse_bugzilla |
|  |  | https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 |  | suse_bugzilla |
|  |  | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b |  | redhat_bugzilla |
|  |  | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b |  | github_advisory |
|  |  | https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 |  | github_advisory |
|  |  | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b |  | osv |
|  |  | https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 |  | osv |
|  |  | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b |  | snyk |
|  |  | https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 |  | snyk |
|  |  | https://github.com/pallets/flask/pull/5109 |  | snyk |
|  |  | https://github.com/pallets/flask/commit/70f906c51ce49c485f1d355703e9cc3386b1cc2b |  | nvd |
|  |  | https://github.com/pallets/flask/commit/afd63b16170b7c047f5758eb910c416511e9c965 |  | nvd |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
            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.     
 openEuler评分：
  7.5
 Vector：CVSS：3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS-SP1(1.1.2):受影响
2.openEuler-20.03-LTS-SP3(1.1.2):受影响
3.openEuler-20.03-LTS-SP4:受影响
4.openEuler-22.03-LTS(1.1.2):受影响
5.openEuler-22.03-LTS-SP1(2.1.2):受影响
6.openEuler-22.03-LTS-SP2(2.1.2):受影响
7.openEuler-22.03-LTS-SP3:受影响

修复是否涉及abi变化(是/否)：
  1.openEuler-20.03-LTS-SP1(1.1.2):否
2.openEuler-20.03-LTS-SP3(1.1.2):否
3.openEuler-20.03-LTS-SP4:否
4.openEuler-22.03-LTS(1.1.2):否
5.openEuler-22.03-LTS-SP1(2.1.2):否
6.openEuler-22.03-LTS-SP2(2.1.2):否
7.openEuler-22.03-LTS-SP3:否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2023-1936

src-openEuler/python-flask

内容风险标识

评论 (13)

src-openEuler/python-flask .gitee-modal { width: 500px !important; }

内容风险标识

CVE-2023-30861

评论 (13)

搜索帮助

src-openEuler/python-flask