CVE-2021-41617HighConfirmedExploit available
AST
AST
Astra Linux Security Bulletins
Astra publishes per-release bulletins that map upstream CVEs to their own package repositories, with remediation timelines tied to the certification level (SE 1.7, CE 2.12, etc.). Indispensable for systems that require ФСТЭК/ФСБ clearance.
Region
RU
Updates
24 ч
License
Открытые данные
Vendor security bulletins for Astra Linux Special Edition and Common Edition — the primary certified Linux OS for Russian defense and critical infrastructure.
https://wiki.astralinux.ru/pages/viewpage.action?pageId=27362056 →Share link
Anyone with the link can open this vulnerability.
sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows privilege escalation because supplemen…
CVSS
7.0
High
EPSS
0.02
p81
Published
2021-01-01
Updated
2021-01-01
Description
sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows privilege escalation because supplemental groups are not initialized as expected. Helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with group memberships of the sshd process, if the configuration specifies running the command as a different user.
Tags · CWE
CWE-273
CWE-273BaseIncomplete
Improper Check for Dropped Privileges
The product attempts to drop privileges but does not check or incorrectly checks to see if the drop succeeded.
https://cwe.mitre.org/data/definitions/273.html →Open in CWE collection →Affected products
Openquantumsafe-opensshOpenquantumsafe-openssh-askpass-commonOpenquantumsafe-openssh-clientsOpenquantumsafe-openssh-commonOpenquantumsafe-openssh-keysignOpenquantumsafe-openssh-serverOpenquantumsafe-openssh-server-controlOpensshOpensshOpensshOpensshOpensshOpensshOpensshOpensshOpensshOpensshOpensshOpensshOpenssh
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Timeline
2021-01-01
Published
2021-01-01
Updated
CVSS 3.1 breakdown
Attack Vector
AV: L
Local (L)
Attack Complexity
AC: H
High (H)
Privileges Required
PR: L
Low (L)
User Interaction
UI: N
None (N)
Scope
S: U
Unchanged (U)
Confidentiality Impact
C: H
High (H)
Integrity Impact
I: H
High (H)
Availability Impact
A: H
High (H)
Exploit indicators
EPSS
0.024 · p81
Known exploited (KEV)
No
Known exploits — Сканер-ВС
CVE-2021-41617
github-poc · https://github.com/AdnanApriliyansyahh/CVE-2021-41617
Affected products
| Product | Vendor | Status |
|---|---|---|
| openquantumsafe-openssh | Tracked | |
| openquantumsafe-openssh-askpass-common | Tracked | |
| openquantumsafe-openssh-clients | Tracked | |
| openquantumsafe-openssh-common | Tracked | |
| openquantumsafe-openssh-keysign | Tracked | |
| openquantumsafe-openssh-server | Tracked | |
| openquantumsafe-openssh-server-control | Tracked | |
| openssh | Tracked | |
| openssh | Tracked | |
| openssh | Tracked | |
| openssh | Tracked | |
| openssh | Tracked | |
| openssh | Tracked | |
| openssh | Tracked | |
| openssh | Tracked | |
| openssh | Tracked | |
| openssh | Tracked | |
| openssh | Tracked | |
| openssh | Tracked | |
| openssh | Tracked |
Showing first 20 of 53
Source databases
AST
AST
Astra Linux Security Bulletins
Astra publishes per-release bulletins that map upstream CVEs to their own package repositories, with remediation timelines tied to the certification level (SE 1.7, CE 2.12, etc.). Indispensable for systems that require ФСТЭК/ФСБ clearance.
Region
RU
Updates
24 ч
License
Открытые данные
Vendor security bulletins for Astra Linux Special Edition and Common Edition — the primary certified Linux OS for Russian defense and critical infrastructure.
https://wiki.astralinux.ru/pages/viewpage.action?pageId=27362056 →DEB
DEB
Debian Security Advisories (DSA)
DSAs are published by the Debian Security Team for issues affecting the stable distribution. The downstream tracker (security-tracker.debian.org) additionally maps every CVE to its package-level status across all supported suites.
Region
Intl.
Updates
1 ч
License
Public Domain
Advisories covering the Debian stable and oldstable releases. Ship notes include the exact .deb version that remediates each issue.
https://www.debian.org/security/ →CVE
CVE
National Vulnerability Database
NVD is the U.S. government repository of standards-based vulnerability management data, built on top of the MITRE CVE list. Every record includes CPE applicability statements, CVSS v2 and v3.x base scores, CWE mappings and cross-references to advisories.
Region
US
Updates
15 min
License
Public Domain
Comprehensive catalog of publicly disclosed vulnerabilities with CPE matches, CVSS scoring and reference URLs. De-facto standard for cross-vendor correlation.
https://nvd.nist.gov →RED
RED
Red Hat Security Advisories (RHSA)
Red Hat advisories are authoritative for RHEL-family systems: each record lists the exact package NEVRA fixed, the affected streams, and a Red Hat-assigned severity that may differ from NVD's. Many downstream projects (CentOS Stream, Rocky, Alma) follow these IDs.
Region
US
Updates
1 ч
License
CC BY-SA 4.0
Advisories for Red Hat Enterprise Linux, OpenShift, Ansible and other Red Hat products. Includes detailed backport tracking — critical for long-term-support distributions.
https://access.redhat.com/security/security-updates/ →UBU
UBU
Ubuntu Security Notices (USN)
USNs are authoritative for Ubuntu systems. The CVE Tracker links each vulnerability to its per-release status (needed, released, not-affected) and to the exact Launchpad bug where the fix is integrated.
Region
Intl.
Updates
1 ч
License
CC BY-SA 3.0
Security notices for Ubuntu LTS and interim releases, covering main, universe and (via Pro) ESM-extended packages.
https://ubuntu.com/security/notices →Related vulnerabilities