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[{"id":483,"title":"Self-taught through trial and error","votes":549,"type":"x","order":1,"pct":78.54,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.29,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.86,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.3,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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91
Ls Advisories Gentoo Esm H240
Price Tag 1security advisorygentooprivilege escalation

Gentoo: GLSA-202108-45 High: Shadow Security Flaw Detected

Multiple Shadow utilities were installed with setuid permissions, allowing possible root privilege escalation.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202008-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: Shadow: Privilege escalation Date: August 25, 2020 Bugs: #702252 ID: 202008-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= Multiple Shadow utilities were installed with setuid permissions, allowing possible root privilege escalation. Background ========= Shadow is a set of tools to deal with user accounts. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-apps/shadow < 4.8-r3 > = 4.8-r3 Description ========== When Shadow was installed with the PAM use flag, setuid binaries provided by Shadow were not properly restricted. Impact ===== A local attacker could escalate privileges to root. Workaround ========= There is no known workaround at this time. Resolution ========= All Shadow users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =sys-apps/shadow-4.8-r3" References ========= [ 1 ] CVE-2019-19882 https://nvd.nist.gov/vuln/detail/CVE-2019-19882 [ 2 ] Upstream mitigation https://github.com/shadow-maint/shadow/pull/199 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202008-09 Concerns? ======== Security is a primary focus of Gentoo Linux and ensuringthe confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to This email address is being protected from spambots. You need JavaScript enabled to view it. or alternatively, you may file a bug at https://bugs.gentoo.org. License ====== Copyright 2020 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.5/ . Various vulnerabilities in shadow utilities can lead to privilege elevation on Gentoo systems. Ensure you upgrade to the most recent version to safeguard your system.. Shadow Privilege Escalation, Gentoo Security Advisory, Setuid Permissions. . LinuxSecurity.com Team

Calendar 2 Aug 25, 2020 Gentoo
89
Ls Advisories Fedora Esm H240
Price Tag 1security advisoryuser managementmoderate severity

CentOS: 2021-320 Moderate: Samba 4 Fix for User Management

A regression has been fixed where strict enforcement of POSIX rules for user and group names prevented Samba 3 from using its "add machine script" feature with useradd. Also, the maximum length for a username/groupname is now 31 (previously it was 32). The lastlog command can now handle extremely large (greater than 4GB) lastlogs.. ---------------------------------------------------------------------Fedora Update Notification FEDORA-2004-510 2004-12-09 ---------------------------------------------------------------------Product : Fedora Core 3 Name : shadow-utils Version : 4.0.3 Release : 56 Summary : Utilities for managing accounts and shadow password files. Description : The shadow-utils package includes the necessary programs for converting UNIX password files to the shadow password format, plus programs for managing user and group accounts. The pwconv command converts passwords to the shadow password format. The pwunconv command unconverts shadow passwords and generates an npasswd file (a standard UNIX password file). The pwck command checks the integrity of password and shadow files. The lastlog command prints out the last login times for all users. The useradd, userdel, and usermod commands are used for managing user accounts. The groupadd, groupdel, and groupmod commands are used for managing group accounts. ---------------------------------------------------------------------Update Information: A regression has been fixed where strict enforcement of POSIX rules for user and group names prevented Samba 3 from using its "add machine script" feature with useradd. Also, the maximum length for a username/groupname is now 31 (previously it was 32). The lastlog command can now handle extremely large (greater than 4GB) lastlogs. ---------------------------------------------------------------------* Fri Dec 03 2004 Adrian Havill 2:4.0.3-56 - tweak max allowed length of user/group names to sizeof(ut_user)-1 to allow for '' termination - addlastlog support for > 4gb (#125445) * Tue Nov 23 2004 Bill Nottingham - ghost lastlog here (#139539) * Tue Nov 16 2004 Adrian Havill 2:4.0.3-42 - change MAXMEM static limit on group count to dynamic (#125510) - re-allow "$" as last char for the sake of samba (#132782) - don't strip binaries for debuginfo ---------------------------------------------------------------------This update can be downloaded from: 19b0b6aab5e0ac84b599657562552ce4 SRPMS/shadow-utils-4.0.3-56.src.rpm e38ebc2565d9f4dc2ee0b50be4eb4b8a x86_64/shadow-utils-4.0.3-56.x86_64.rpm cc7e9854d4f357e6be265173d4b372e1 x86_64/debug/shadow-utils-debuginfo-4.0.3-56.x86_64.rpm d59341efb0561541a0fe4258d6756378 i386/shadow-utils-4.0.3-56.i386.rpm 7b9232a5e8200dfb849bb63c770954e6 i386/debug/shadow-utils-debuginfo-4.0.3-56.i386.rpm This update can also be installed with the Update Agent; you can launch the Update Agent with the 'up2date' command. -----------------------------------------------------------------------fedora-announce-list mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. . Updates feature a bug resolution for Samba 3 add machine script along with improvements to lastlog in the shadow-utils package.. Samba Patch, Linux User Management, Security Patch, Shadow Utilities Update. . LinuxSecurity.com Team

Calendar 2 Dec 09, 2004 Fedora
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[{"id":483,"title":"Self-taught through trial and error","votes":549,"type":"x","order":1,"pct":78.54,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.29,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.86,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.3,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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