7.2
HIGH
CVE-2021-20288
"CEPH Authentication Sanitization Vulnerability"
Description

An authentication flaw was found in ceph in versions before 14.2.20. When the monitor handles CEPHX_GET_AUTH_SESSION_KEY requests, it doesn't sanitize other_keys, allowing key reuse. An attacker who can request a global_id can exploit the ability of any user to request a global_id previously associated with another user, as ceph does not force the reuse of old keys to generate new ones. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

INFO

Published Date :

April 15, 2021, 3:15 p.m.

Last Modified :

Feb. 16, 2024, 8:33 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

1.2
Affected Products

The following products are affected by CVE-2021-20288 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat ceph_storage
2 Redhat ceph
1 Fedoraproject fedora
1 Debian debian_linux
1 Linuxfoundation ceph
References to Advisories, Solutions, and Tools

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-20288 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-20288 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Feb. 16, 2024

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html No Types Assigned https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/362CEPPYF3YMJZBEJQUT3KDE2EHYYIYQ/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/362CEPPYF3YMJZBEJQUT3KDE2EHYYIYQ/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5BPIAYTRCWAU4XWCDBK2THEFVXSC4XGK/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5BPIAYTRCWAU4XWCDBK2THEFVXSC4XGK/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JVWUKUUS5BCIFWRV3JCUQMAPJ4HIWSED/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JVWUKUUS5BCIFWRV3JCUQMAPJ4HIWSED/ Mailing List, Third Party Advisory
    Added CWE NIST CWE-287
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/362CEPPYF3YMJZBEJQUT3KDE2EHYYIYQ/ [No types assigned]
    Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5BPIAYTRCWAU4XWCDBK2THEFVXSC4XGK/ [No types assigned]
    Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JVWUKUUS5BCIFWRV3JCUQMAPJ4HIWSED/ [No types assigned]
    Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/362CEPPYF3YMJZBEJQUT3KDE2EHYYIYQ/
    Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/5BPIAYTRCWAU4XWCDBK2THEFVXSC4XGK/
    Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/JVWUKUUS5BCIFWRV3JCUQMAPJ4HIWSED/
  • CVE Modified by [email protected]

    Oct. 23, 2023

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Jun. 03, 2021

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/JVWUKUUS5BCIFWRV3JCUQMAPJ4HIWSED/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/JVWUKUUS5BCIFWRV3JCUQMAPJ4HIWSED/ Mailing List, Third Party Advisory
    Changed Reference Type https://security.gentoo.org/glsa/202105-39 No Types Assigned https://security.gentoo.org/glsa/202105-39 Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:a:linuxfoundation:ceph:*:*:*:*:*:*:*:* versions up to (excluding) 14.2.20 OR *cpe:2.3:a:linuxfoundation:ceph:*:*:*:*:*:*:*:* versions up to (excluding) 14.2.21
    Changed CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    May. 27, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/JVWUKUUS5BCIFWRV3JCUQMAPJ4HIWSED/ [No Types Assigned]
    Added Reference https://security.gentoo.org/glsa/202105-39 [No Types Assigned]
  • Modified Analysis by [email protected]

    May. 04, 2021

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/362CEPPYF3YMJZBEJQUT3KDE2EHYYIYQ/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/362CEPPYF3YMJZBEJQUT3KDE2EHYYIYQ/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/5BPIAYTRCWAU4XWCDBK2THEFVXSC4XGK/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/5BPIAYTRCWAU4XWCDBK2THEFVXSC4XGK/ Mailing List, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Apr. 29, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/5BPIAYTRCWAU4XWCDBK2THEFVXSC4XGK/ [No Types Assigned]
  • CVE Modified by [email protected]

    Apr. 27, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/362CEPPYF3YMJZBEJQUT3KDE2EHYYIYQ/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Apr. 22, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1938031 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1938031 Issue Tracking, Patch, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:linuxfoundation:ceph:*:*:*:*:*:*:*:* versions up to (excluding) 14.2.20
    Added CPE Configuration OR *cpe:2.3:a:redhat:ceph_storage:4.0:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-20288 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.19 }} -0.05%

score

0.55027

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability