CyberSecBulletin
CVE-2023-2585NVD status: Modified

Red Hat Single Sign-On 7: Improperly Implemented Security Check for Standard

Published Updated By the CyberSecBulletin desk

CVE-2023-2585 is a high-severity improperly implemented security check for standard vulnerability in Red Hat Single Sign-On 7 from Red Hat, with a CVSS 3.1 base score of 8.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. There is no confirmed exploitation so far. EPSS estimates a 0.69% chance of exploitation within 30 days, higher than 54% of scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of Red Hat Single Sign-On 7 you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on access.redhat.com for workarounds and exact fixed builds.
  3. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
  4. Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.

Affected products and versions

VendorProductAffected versionsFixed in
Red HatRed Hat Single Sign-On 7Not specified in the recordNot stated
Red HatRed Hat Single Sign-On 7.6 for RHEL 7Not specified in the recordNot stated
Red HatRed Hat Single Sign-On 7.6 for RHEL 8Not specified in the recordNot stated
Red HatRed Hat Single Sign-On 7.6 for RHEL 9Not specified in the recordNot stated
Red HatRHEL-8 based Middleware ContainersNot specified in the recordNot stated
Red HatSingle Sign-on7.6Not stated
Red HatOpenshift Container Platform4.11; 4.12Not stated
Red HatOpenshift Container Platform For IBM Z4.9; 4.10Not stated
Red HatOpenshift Container Platform For Linuxone4.9; 4.10Not stated
Red HatOpenshift Container Platform For Power4.9; 4.10Not stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
RequiredA user must take an action such as opening a file or link.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
NoneAvailability is not affected.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.13.5LowCNA (redhat.com)
CVSS 3.18.1HighNVD

Official description

Keycloak's device authorization grant does not correctly validate the device code and client ID. An attacker client could abuse the missing validation to spoof a client consent request and trick an authorization admin into granting consent to a malicious OAuth client or possible unauthorized access to an existing OAuth client.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Improperly Implemented Security Check for Standard

The product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique.

More Improperly Implemented Security Check for Standard vulnerabilities (CWE-358)

Timeline

  1. CVE record published.
  2. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Red Hat Single Sign-On 7

All Red Hat Single Sign-On 7 vulnerabilities

Recent Improperly Implemented Security Check for Standard vulnerabilities

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