低危 PostgreSQL变量覆盖漏洞
CVE编号
CVE-2020-25696利用情况
暂无补丁情况
官方补丁披露时间
2020-11-24漏洞描述
PostgreSQL是Postgresql组织的一套自由的对象关系型数据库管理系统。该系统支持大部分SQL标准并且提供了许多其他特性，例如外键、触发器、视图等。 PostgreSQL 12.5之前版本存在安全漏洞，该漏洞源于gset 允许覆盖经过特殊处理的变量，gset命令根据查询结果设置psql变量，该命令不区分控制psql行为的变量。攻击者可利用该漏洞执行任意代码作为运行psql的操作系统帐户解决建议
目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://www.postgresql.org/support/security/
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | postgresql | postgresql | * | From (including) 10.0 | Up to (excluding) 10.15 | ||||
| 运行在以下环境 | |||||||||
| 应用 | postgresql | postgresql | * | From (including) 11.0 | Up to (excluding) 11.10 | ||||
| 运行在以下环境 | |||||||||
| 应用 | postgresql | postgresql | * | From (including) 12.0 | Up to (excluding) 12.5 | ||||
| 运行在以下环境 | |||||||||
| 应用 | postgresql | postgresql | * | From (including) 13.0 | Up to (excluding) 13.1 | ||||
| 运行在以下环境 | |||||||||
| 应用 | postgresql | postgresql | * | From (including) 9.5.0 | Up to (excluding) 9.5.24 | ||||
| 运行在以下环境 | |||||||||
| 应用 | postgresql | postgresql | * | From (including) 9.6.0 | Up to (excluding) 9.6.20 | ||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.10 | postgresql | * | Up to (excluding) 11.10-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.11 | postgresql | * | Up to (excluding) 12.5-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | postgresql | * | Up to (excluding) 12.5-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | postgresql | * | Up to (excluding) 12.5-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | postgresql | * | Up to (excluding) 12.5-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | postgresql12 | * | Up to (excluding) 12.5-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.16 | postgresql12 | * | Up to (excluding) 12.5-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | postgresql12 | * | Up to (excluding) 12.5-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | postgresql12 | * | Up to (excluding) 12.5-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.9 | postgresql | * | Up to (excluding) 11.10-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | postgresql14 | * | Up to (excluding) 12.5-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_AMI | postgresql95 | * | Up to (excluding) 9.6.20-1.84.amzn1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | anolis_os_8 | libpq-devel | * | Up to (excluding) 12.5-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | anolis_os_8.2 | libpq | * | Up to (excluding) 12.5-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | centos_8 | libpq-debuginfo | * | Up to (excluding) 0.10.0-2.module+el8.3.0+9042+664538f4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian | debian_linux | 9.0 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | postgresql-11 | * | Up to (excluding) 11.10-0+deb10u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | postgresql-13 | * | Up to (excluding) 13.1-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | postgresql-9.6 | * | Up to (excluding) 9.6.20-0+deb9u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | postgresql-12 | * | Up to (including) 12.4-3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_32_Modular | postgresql | * | Up to (excluding) 11-3220210113151114.43bbeeef | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_33_Modular | postgresql | * | Up to (excluding) 10-3320210113115521.601d93de | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10SP1 | postgresql | * | Up to (excluding) 10.5-23.p01.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10SP2 | postgresql | * | Up to (excluding) 10.5-23.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_loongarch64_V10SP1 | postgresql | * | Up to (excluding) 10.5-23.p02.a.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10SP1 | postgresql | * | Up to (excluding) 10.5-23.p01.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10SP2 | postgresql | * | Up to (excluding) 10.5-23.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.1 | postgresql10-server | * | Up to (excluding) 12.5-lp151.10.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | postgresql10-server | * | Up to (excluding) 12.5-lp152.3.10.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_7 | oraclelinux-release | * | Up to (excluding) 10.15-1.el7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | oraclelinux-release | * | Up to (excluding) 12.5-1.module+el8.3.0+9608+b210d254 | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_8 | libpq-debuginfo | * | Up to (excluding) 0.10.0-2.module+el8.3.0+9042+664538f4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | postgresql10-server | * | Up to (excluding) 12.5-3.12.3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04 | postgresql-9.5 | * | Up to (excluding) 9.5.24-0ubuntu0.16.04.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04.7_lts | postgresql-9.5 | * | Up to (excluding) 9.5.24-0ubuntu0.16.04.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | postgresql-10 | * | Up to (excluding) 10.15-0ubuntu0.18.04.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04.5_lts | postgresql-10 | * | Up to (excluding) 10.15-0ubuntu0.18.04.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | postgresql-12 | * | Up to (excluding) 12.5-0ubuntu0.20.04.1 | |||||
- 攻击路径 远程
- 攻击复杂度 困难
- 权限要求 无需权限
- 影响范围 有限影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 无影响
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 100
| CWE-ID | 漏洞类型 |
| CWE-183 | 宽松定义的白名单 |
| CWE-270 | 特权上下文切换错误 |
| CWE-697 | 不充分的比较 |
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