linux-pam 信息泄露漏洞

CVE编号

CVE-2010-3431

利用情况

暂无

补丁情况

N/A

披露时间

2011-01-25

漏洞描述

The privilege-dropping implementation in the (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) 1.1.2 does not check the return value of the setfsuid system call, which might allow local users to obtain sensitive information by leveraging an unintended uid, as demonstrated by a symlink attack on the .pam_environment file in a user's home directory. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-3435.

解决建议

建议您更新当前系统或软件至最新版，完成漏洞的修复。

参考链接
http://git.altlinux.org/people/ldv/packages/?p=pam.git;a=commit;h=843807a3a90...
http://openwall.com/lists/oss-security/2010/09/21/10
http://openwall.com/lists/oss-security/2010/09/21/3
http://openwall.com/lists/oss-security/2010/09/21/8
http://openwall.com/lists/oss-security/2010/09/21/9
http://openwall.com/lists/oss-security/2010/09/27/10
http://openwall.com/lists/oss-security/2010/09/27/4
http://openwall.com/lists/oss-security/2010/09/27/5
http://openwall.com/lists/oss-security/2010/09/27/7
http://openwall.com/lists/oss-security/2010/10/03/1
http://openwall.com/lists/oss-security/2010/10/25/2
http://secunia.com/advisories/49711
http://security.gentoo.org/glsa/glsa-201206-31.xml
http://www.openwall.com/lists/oss-security/2010/09/21/11
http://www.openwall.com/lists/oss-security/2010/09/24/2
https://bugzilla.redhat.com/show_bug.cgi?id=641361

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	linux-pam	linux-pam	1.1.2	-
	运行在以下环境
	系统	suse_12	pam	*		Up to (excluding) 1.1.8-11

CVSS3评分 1.9

• 攻击路径 本地
• 攻击复杂度 N/A
• 权限要求 无
• 影响范围 N/A
• 用户交互 无
• 可用性 无
• 保密性 部分地
• 完整性 无

AV:L/AC:M/Au:N/C:P/I:N/A:N CWE-ID 漏洞类型 NVD-CWE-Other