Upstream information
Description
Sudo-rs, a memory safe implementation of sudo and su, allows users to not have to enter authentication at every sudo attempt, but instead only requiring authentication every once in a while in every terminal or process group. Only once a configurable timeout has passed will the user have to re-authenticate themselves. Supporting this functionality is a set of session files (timestamps) for each user, stored in `/var/run/sudo-rs/ts`. These files are named according to the username from which the sudo attempt is made (the origin user). An issue was discovered in versions prior to 0.2.1 where usernames containing the `.` and `/` characters could result in the corruption of specific files on the filesystem. As usernames are generally not limited by the characters they can contain, a username appearing to be a relative path can be constructed. For example we could add a user to the system containing the username `../../../../bin/cp`. When logged in as a user with that name, that user could run `sudo -K` to clear their session record file. The session code then constructs the path to the session file by concatenating the username to the session file storage directory, resulting in a resolved path of `/bin/cp`. The code then clears that file, resulting in the `cp` binary effectively being removed from the system. An attacker needs to be able to login as a user with a constructed username. Given that such a username is unlikely to exist on an existing system, they will also need to be able to create the users with the constructed usernames. The issue is patched in version 0.2.1 of sudo-rs. Sudo-rs now uses the uid for the user instead of their username for determining the filename. Note that an upgrade to this version will result in existing session files being ignored and users will be forced to re-authenticate. It also fully eliminates any possibility of path traversal, given that uids are always integer values. The `sudo -K` and `sudo -k` commands can run, even if a user has no sudo access. As a workaround, make sure that one's system does not contain any users with a specially crafted username. While this is the case and while untrusted users do not have the ability to create arbitrary users on the system, one should not be able to exploit this issue.SUSE information
Overall state of this security issue: Does not affect SUSE products
This issue is currently rated as having important severity.
| National Vulnerability Database | |
|---|---|
| Base Score | 3.1 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:L |
| Attack Vector | Local |
| Attack Complexity | Low |
| Privileges Required | High |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | Low |
| Availability Impact | Low |
| CVSSv3 Version | 3.1 |
List of released packages
| Product(s) | Fixed package version(s) | References |
|---|---|---|
| openSUSE Tumbleweed |
| Patchnames: openSUSE Tumbleweed GA sudo-1.9.15p2-1.1 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SLES15-SP5-CHOST-BYOS-Aliyun | sudo | Analysis |
| SLES15-SP5-CHOST-BYOS-Azure | sudo | Analysis |
| SLES15-SP5-CHOST-BYOS-EC2 | sudo | Analysis |
| SLES15-SP5-CHOST-BYOS-GCE | sudo | Analysis |
| SLES15-SP5-CHOST-BYOS-SAP-CCloud | sudo | Analysis |
| SUSE Enterprise Storage 7.1 | sudo | Analysis |
| SUSE Linux Enterprise Desktop 15 SP5 | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 12 SP5 | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | sudo | Analysis |
| SUSE Linux Enterprise Micro 5.1 | sudo | Analysis |
| SUSE Linux Enterprise Micro 5.2 | sudo | Analysis |
| SUSE Linux Enterprise Micro 5.3 | sudo | Analysis |
| SUSE Linux Enterprise Micro 5.4 | sudo | Analysis |
| SUSE Linux Enterprise Micro 5.5 | sudo | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | sudo | Analysis |
| SUSE Linux Enterprise Real Time 15 SP3 | sudo | Analysis |
| SUSE Linux Enterprise Server 12 SP5 | sudo | Analysis |
| SUSE Linux Enterprise Server 15 SP5 | sudo | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | sudo | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | sudo | Analysis |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | sudo | Analysis |
| SUSE Manager Proxy 4.3 | sudo | Analysis |
| SUSE Manager Retail Branch Server 4.3 | sudo | Analysis |
| SUSE Manager Server 4.3 | sudo | Analysis |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SLES15-EC2-CHOST-HVM-BYOS | sudo | Analysis |
| SLES15-SP1-CHOST-BYOS-Azure | sudo | Analysis |
| SLES15-SP1-CHOST-BYOS-EC2 | sudo | Analysis |
| SLES15-SP1-CHOST-BYOS-GCE | sudo | Analysis |
| SLES15-SP2-CHOST-BYOS-Aliyun | sudo | Analysis |
| SLES15-SP2-CHOST-BYOS-Azure | sudo | Analysis |
| SLES15-SP2-CHOST-BYOS-EC2 | sudo | Analysis |
| SLES15-SP2-CHOST-BYOS-GCE | sudo | Analysis |
| SLES15-SP3-CHOST-BYOS-Aliyun | sudo | Analysis |
| SLES15-SP3-CHOST-BYOS-Azure | sudo | Analysis |
| SLES15-SP3-CHOST-BYOS-EC2 | sudo | Analysis |
| SLES15-SP3-CHOST-BYOS-GCE | sudo | Analysis |
| SLES15-SP3-CHOST-BYOS-SAP-CCloud | sudo | Analysis |
| SLES15-SP4-CHOST-BYOS | sudo | Analysis |
| SLES15-SP4-CHOST-BYOS-Aliyun | sudo | Analysis |
| SLES15-SP4-CHOST-BYOS-Azure | sudo | Analysis |
| SLES15-SP4-CHOST-BYOS-EC2 | sudo | Analysis |
| SLES15-SP4-CHOST-BYOS-GCE | sudo | Analysis |
| SLES15-SP4-CHOST-BYOS-SAP-CCloud | sudo | Analysis |
| SUSE Linux Enterprise Desktop 15 SP4 | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | sudo | Analysis |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | sudo | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | sudo | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | sudo | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | sudo | Analysis |
| SUSE Linux Enterprise Server 15 SP2 | sudo | Analysis |
| SUSE Linux Enterprise Server 15 SP2-LTSS | sudo | Analysis |
| SUSE Linux Enterprise Server 15 SP3 | sudo | Analysis |
| SUSE Linux Enterprise Server 15 SP3-LTSS | sudo | Analysis |
| SUSE Linux Enterprise Server 15 SP4 | sudo | Analysis |
| SUSE Linux Enterprise Server 15 SP4-LTSS | sudo | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | sudo | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | sudo | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | sudo | Analysis |
| SUSE OpenStack Cloud 8 | sudo | Analysis |
| SUSE OpenStack Cloud 9 | sudo | Analysis |
| Products past their end of life and not receiving proactive updates anymore. | ||
| HPE Helion OpenStack 8 | sudo | Analysis |
| SUSE CaaS Platform 3.0 | sudo | Analysis |
| SUSE CaaS Platform 4.0 | sudo | Analysis |
| SUSE Enterprise Storage 6 | sudo | Analysis |
| SUSE Enterprise Storage 7 | sudo | Analysis |
| SUSE Linux Enterprise Desktop 12 SP2 | sudo | Analysis |
| SUSE Linux Enterprise Desktop 12 SP3 | sudo | Analysis |
| SUSE Linux Enterprise Desktop 12 SP4 | sudo | Analysis |
| SUSE Linux Enterprise Desktop 15 | sudo | Analysis |
| SUSE Linux Enterprise Desktop 15 SP1 | sudo | Analysis |
| SUSE Linux Enterprise Desktop 15 SP2 | sudo | Analysis |
| SUSE Linux Enterprise Desktop 15 SP3 | sudo | Analysis |
| SUSE Linux Enterprise Micro 5.0 | sudo | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 | sudo | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | sudo | Analysis |
| SUSE Linux Enterprise Real Time 15 SP2 | sudo | Analysis |
| SUSE Linux Enterprise Real Time 15 SP4 | sudo | Analysis |
| SUSE Linux Enterprise Server 11 SP3 | sudo | Analysis |
| SUSE Linux Enterprise Server 11 SP3-LTSS | sudo | Analysis |
| SUSE Linux Enterprise Server 11 SP4 | sudo | Analysis |
| SUSE Linux Enterprise Server 11 SP4 LTSS | sudo | Analysis |
| SUSE Linux Enterprise Server 11 SP4-LTSS | sudo | Analysis |
| SUSE Linux Enterprise Server 12 SP2 | sudo | Analysis |
| SUSE Linux Enterprise Server 12 SP2-BCL | sudo | Analysis |
| SUSE Linux Enterprise Server 12 SP2-ESPOS | sudo | Analysis |
| SUSE Linux Enterprise Server 12 SP2-LTSS | sudo | Analysis |
| SUSE Linux Enterprise Server 12 SP3 | sudo | Analysis |
| SUSE Linux Enterprise Server 12 SP3-BCL | sudo | Analysis |
| SUSE Linux Enterprise Server 12 SP3-ESPOS | sudo | Analysis |
| SUSE Linux Enterprise Server 12 SP3-LTSS | sudo | Analysis |
| SUSE Linux Enterprise Server 12 SP4 | sudo | Analysis |
| SUSE Linux Enterprise Server 12 SP4-ESPOS | sudo | Analysis |
| SUSE Linux Enterprise Server 12 SP4-LTSS | sudo | Analysis |
| SUSE Linux Enterprise Server 15 | sudo | Analysis |
| SUSE Linux Enterprise Server 15 SP1 | sudo | Analysis |
| SUSE Linux Enterprise Server 15 SP1-BCL | sudo | Analysis |
| SUSE Linux Enterprise Server 15 SP1-LTSS | sudo | Analysis |
| SUSE Linux Enterprise Server 15 SP2-BCL | sudo | Analysis |
| SUSE Linux Enterprise Server 15 SP3-BCL | sudo | Analysis |
| SUSE Linux Enterprise Server 15-LTSS | sudo | Analysis |
| SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 | sudo | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | sudo | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | sudo | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | sudo | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 | sudo | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | sudo | Analysis |
| SUSE Linux Enterprise Software Development Kit 12 SP2 | sudo | Analysis |
| SUSE Linux Enterprise Software Development Kit 12 SP3 | sudo | Analysis |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | sudo | Analysis |
| SUSE Manager Proxy 4.0 | sudo | Analysis |
| SUSE Manager Proxy 4.1 | sudo | Analysis |
| SUSE Manager Proxy 4.2 | sudo | Analysis |
| SUSE Manager Retail Branch Server 4.0 | sudo | Analysis |
| SUSE Manager Retail Branch Server 4.1 | sudo | Analysis |
| SUSE Manager Retail Branch Server 4.2 | sudo | Analysis |
| SUSE Manager Server 4.0 | sudo | Analysis |
| SUSE Manager Server 4.1 | sudo | Analysis |
| SUSE Manager Server 4.2 | sudo | Analysis |
| SUSE OpenStack Cloud 7 | sudo | Analysis |
| SUSE OpenStack Cloud Crowbar 8 | sudo | Analysis |
| SUSE OpenStack Cloud Crowbar 9 | sudo | Analysis |
| Container Status | ||
| ses/6/cephcsi/cephcsi ses/6/rook/ceph ses/7.1/cephcsi/cephcsi ses/7.1/rook/ceph ses/7/ceph/ceph ses/7/cephcsi/cephcsi ses/7/rook/ceph suse/sle-micro-rancher/5.2 suse/sle-micro-rancher/5.3 suse/sle-micro-rancher/5.4 suse/sle-micro/5.0/toolbox suse/sle-micro/5.1/toolbox suse/sle-micro/5.2/toolbox suse/sle-micro/5.3/toolbox suse/sle-micro/5.4/toolbox suse/sle-micro/5.5 suse/sle-micro/5.5/toolbox | sudo | Analysis |
| suse/manager/5.0/x86_64/server | sudo | Already fixed |
SUSE Timeline for this CVE
CVE page created: Thu Sep 21 20:00:17 2023CVE page last modified: Wed Apr 24 19:20:54 2024