CVE-2022-4318

一、漏洞信息
 漏洞编号：[CVE-2022-4318](https://nvd.nist.gov/vuln/detail/CVE-2022-4318)
 漏洞归属组件：[cri-o](https://gitee.com/src-openeuler/cri-o)
 漏洞归属的版本：1.23.2
 CVSS V3.0分值：
  BaseScore：7.8 High
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
 漏洞简述：
  A vulnerability was found in cri-o. This issue allows the addition of arbitrary lines into /etc/passwd by use of a specially crafted environment variable.
 漏洞公开时间：2023-09-26 04:15:10
 漏洞创建时间：2022-12-27 12:24:30
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2022-4318
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| secalert.redhat.com | https://access.redhat.com/errata/RHSA-2023:1033 |  |
| secalert.redhat.com | https://access.redhat.com/errata/RHSA-2023:1503 |  |
| secalert.redhat.com | https://access.redhat.com/security/cve/CVE-2022-4318 |  |
| secalert.redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=2152703 |  |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2152703 | https://bugzilla.suse.com/show_bug.cgi?id=1206370 |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-4318 | https://bugzilla.suse.com/show_bug.cgi?id=1206370 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2023:1033 | https://bugzilla.redhat.com/show_bug.cgi?id=2152703 |
| redhat_bugzilla | https://access.redhat.com/security/cve/cve-2022-4318 | https://bugzilla.redhat.com/show_bug.cgi?id=2152703 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2023:1503 | https://bugzilla.redhat.com/show_bug.cgi?id=2152703 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2022-4318 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2022-4318 |
| cve_search |  | https://bugzilla.redhat.com/show_bug.cgi?id=2152703 |
| cve_search |  | https://access.redhat.com/errata/RHSA-2023:1033 |
| cve_search |  | https://access.redhat.com/errata/RHSA-2023:1503 |
| cve_search |  | https://access.redhat.com/security/cve/CVE-2022-4318 |
| github_advisory | https://github.com/cri-o/cri-o/security/advisories/GHSA-cm9x-c3rh-7rc4 | https://github.com/advisories/GHSA-cm9x-c3rh-7rc4 |
| github_advisory | https://github.com/cri-o/cri-o/pull/6450 | https://github.com/advisories/GHSA-cm9x-c3rh-7rc4 |
| cri-o |  | https://github.com//cri-o/cri-o/security/advisories/GHSA-cm9x-c3rh-7rc4 |
| osv | https://github.com/cri-o/cri-o/security/advisories/GHSA-cm9x-c3rh-7rc4 | https://osv.dev/vulnerability/GHSA-cm9x-c3rh-7rc4 |
| osv | https://github.com/cri-o/cri-o/pull/6450 | https://osv.dev/vulnerability/GHSA-cm9x-c3rh-7rc4 |
| osv | https://github.com/cri-o/cri-o | https://osv.dev/vulnerability/GHSA-cm9x-c3rh-7rc4 |
| secalert.redhat.com | https://access.redhat.com/errata/RHSA-2023:1033 |  |
| secalert.redhat.com | https://access.redhat.com/errata/RHSA-2023:1503 |  |
| secalert.redhat.com | https://access.redhat.com/security/cve/CVE-2022-4318 |  |
| secalert.redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=2152703 |  |

</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:
  openBrain开源漏洞感知系统
 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/cri-o/cri-o/pull/6450 |  | github_advisory |
|  |  | https://access.redhat.com/errata/RHSA-2023:1033 |  | nvd |
|  |  | https://access.redhat.com/errata/RHSA-2023:1503 |  | nvd |
|  |  | https://access.redhat.com/security/cve/CVE-2022-4318 |  | nvd |
|  |  | https://bugzilla.redhat.com/show_bug.cgi?id=2152703 |  | nvd |
|  |  | https://github.com/cri-o/cri-o/pull/6450 |  | osv |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
                                      可以用换行符制作环境变量，在/etc/passwd中添加条目。使用默认的SCC可以防止privesc。一个恶意的用户可以使用一个非默认的SCC（例如anyuid），允许进程成为主机上的root。作为容器的作者，可以直接将有问题的一行添加到/etc/passwd中，而不是将其注入HOME环境变量中。因此，影响是适度的，因为利用的可能性不大，把影响限制在保密性上。社区无补丁。                  
 openEuler评分：
  6.1
 Vector：CVSS：2.0/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:N
 受影响版本排查(受影响/不受影响)：
  1.openEuler-22.03-LTS(1.23.2):受影响
2.openEuler-22.03-LTS-SP1(1.23.2):受影响
3.openEuler-20.03-LTS-SP1:不受影响
4.openEuler-20.03-LTS-SP3:不受影响

修复是否涉及abi变化(是/否)：
  1.openEuler-20.03-LTS-SP1:否
2.openEuler-20.03-LTS-SP3:否
3.openEuler-22.03-LTS(1.23.2):否
4.openEuler-22.03-LTS-SP1(1.23.2):否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-1406

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