CVE-2015-3246

libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, directly modifies /etc/passwd, which allows local users to cause a denial of service inconsistent file state by causing an error during the modification. NOTE: this issue can be combined wi...

CVE-2015-3246

CVE-2015-3246 affects the libuser library (shipped in the usermode package on RHEL, CentOS, Fedora, and Debian), where it directly modifies /etc/passwd without adequate error handling. An error during modification can leave the file in an inconsistent state , causing a denial of service. When com...

Libuser Library - Multiple Vulnerabilities

Exploit for linux platform in category dos / poc CVE-2015-3245 userhelper chfn newline filtering CVE-2015-3246 libuser passwd file handling -- Summary ----------------------------------------------------------------- The libuser library implements a standardized interface for manipulating and...

Qualys Security Advisory - CVE-2015-3245 userhelper - CVE-2015-3246 libuser

Hello, it is July 23, 2015, 17:00 UTC, the Coordinated Release Date for CVE-2015-3245 and CVE-2015-3246. Please find our advisory below, and our exploit attached. Qualys Security Advisory CVE-2015-3245 userhelper chfn newline filtering CVE-2015-3246 libuser passwd file handling -- Summary...

Libuser Library - Multiple Vulnerabilities

Libuser Library - Multiple Vulnerabilities Qualys Security Advisory CVE-2015-3245 userhelper chfn newline filtering CVE-2015-3246 libuser passwd file handling -- Summary ----------------------------------------------------------------- The libuser library implements a standardized interface for...

Libuser Library - Multiple Vulnerabilities

Qualys Security Advisory CVE-2015-3245 userhelper chfn newline filtering CVE-2015-3246 libuser passwd file handling -- Summary ----------------------------------------------------------------- The libuser library implements a standardized interface for manipulating and administering user and grou...

Libuser roothelper Privilege Escalation

This module attempts to gain root privileges on Red Hat based Linux systems, including RHEL, Fedora and CentOS, by exploiting a newline injection vulnerability in libuser and userhelper versions prior to 0.56.13-8 and version 0.60 before 0.60-7. This module makes use of the roothelper.c exploit...

libuser: multiple issues

CVE-2015-3245 denial of service It was found that libuser, as used by the chfn userhelper functionality, did not properly filter out newline characters in GECOS fields. A local, authenticated user could use this flaw to corrupt the /etc/passwd file, resulting in a denial-of-service on the system...

Amazon Linux AMI : usermode / libuser (ALAS-2015-572)

It was found that libuser, as used in the chfn userhelper functionality, does not properly filter out newline characters, which allows an authenticated local attacker to corrupt the /etc/passwd file and cause denial-of-service against the system. CVE-2015-3245 A flaw was found in the way the...

libuser: does not filter newline characters in the GECOS field

It was found that libuser, as used by the chfn userhelper functionality, did not properly filter out newline characters in GECOS fields. A local, authenticated user could use this flaw to corrupt the /etc/passwd file, resulting in a denial-of-service on the system...

Qualys Security Advisory - userhelper / libuser

Qualys Security Advisory CVE-2015-3245 userhelper chfn newline filtering CVE-2015-3246 libuser passwd file handling -- Summary ----------------------------------------------------------------- The libuser library implements a standardized interface for manipulating and administering user and grou...

Userhelper-PAM-Path-Vulnerability

synopsis: both 'pam' and 'userhelper' a setuid binary that comes with the 'usermode-1.15' rpm follow .. paths. Since pamstart calls down to pamaddhandler, we can get it to dlopen any file on disk. 'userhelper' being setuid means we can get root...

Mandrake 6.x,RedHat 6.x,Turbolinux 3.5 b2/4.x/6.0.2 userhelper/PAM Path Vulnerability (1)

No description provided by source. Mandrake 6.0/6.1,RedHat 6.0/6.1,Turbolinux 3.5 b2/4.2/4.4/6.0.2 userhelper/PAM Path Vulnerability 1 source: http://www.securityfocus.com/bid/913/info Because of double path vulnerabilities in the binary userhelper and PAM, it is possible to get root locally on...

Mandrake 6.x,RedHat 6.x,Turbolinux 3.5 b2/4.x/6.0.2 userhelper/PAM Path Vulnerability (2)

No description provided by source. source: http://www.securityfocus.com/bid/913/info Because of double path vulnerabilities in the binary userhelper and PAM, it is possible to get root locally on RedHat 6.0 and 6.1 systems. Both userhelper and PAM follow .. paths and userhelper allows you to...

RedHat userhelper/PAM安全漏洞

RedHat 6.0和6.1系统中缺省安装的userhelper和PAM允许使用包含".."的路径名,并且 userhelper被设置了suid root位.因此本地用户可能获得root权限. userhleper允许你通过"-w"参数指定一个要运行的程序,这些程序需要在 /etc/security/console.apps目录里有一个对应文件.因此,通过指定类似"../../../ tmp/myprog"的程序名,攻击者可以利用userhelper去执行 "/etc/security/console.apps/../../../tmp/myprog",也就是执行"/tmp/myprog...

GLIBC 2.1.3 ld_preload Local Exploit

No description provided by source. !/bin/tcsh przyklad wykorzystania dziury w LDPRELOAD shadow tested on redhat 6.0, should work on others if -e /etc/initscript echo uwaga: /etc/initscript istnieje cd /lib umask 0 setenv LDPRELOAD libSegFault.so setenv SEGFAULTOUTPUTNAME /etc/initscript echo...

CVE-2000-1207

userhelper in the usermode package on Red Hat Linux executes non-setuid programs as root, which does not activate the security measures in glibc and allows the programs to be exploited via format string vulnerabilities in glibc via the LANG or LCALL environment variables CVE-2000-0844...

CVE-2000-1207

CVE-2000-1207 affects the userhelper component in the Red Hat Linux usermode package. It executes non-setuid programs as root, which prevents glibc security measures from activating. This creates a local exposure where vulnerable programs can be exploited via format string weaknesses in glibc, tr...

CVE-2000-1207

userhelper in the usermode package on Red Hat Linux executes non-setuid programs as root, which does not activate the security measures in glibc and allows the programs to be exploited via format string vulnerabilities in glibc via the LANG or LCALL environment variables CVE-2000-0844...

CVE-2000-0052

Technical details for CVE-2000-0052 are not publicly provided in the supplied documents; only the generic description is present. Monitor for updates in connected sources for affected products, versions, impact, and remediation.