Single Sign-on vulnerabilitiesAnd the versions its exploited flaws hit.

Product1 known exploited17 versions
The short answer

Single Sign-on is made by Red Hat. We track 101 published vulnerabilities in it, across 17 versions. 1 of them is on the list of flaws known to be exploited, the newest added on 10 October 2023. If you run Single Sign-on, check your version against the exploited flaws below and patch those first.

Check your version

The most recent Single Sign-on flaw added to the known-exploited list is CVE-2023-44487, on 10 October 2023. We keep watching the known-exploited list.

Versions

Which versions of Single Sign-on do the exploited flaws hit?

Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.

  • CVE-2023-44487Exploited list, 10 Oct 2023

    HTTP/2 Rapid Reset Attack Vulnerability

    7.0
Known exploited

Which Single Sign-on vulnerabilities are being exploited?

1 flaw is on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.

  1. 7.5
    CVE-2023-44487HighKnown exploited
    HTTP/2 Rapid Reset Attack Vulnerability

    HTTP/2 contains a rapid reset vulnerability that allows for a distributed denial-of-service attack (DDoS).

    Chance of use>99%Known exploited since10 Oct 2023
Exploit likelihood

Which Single Sign-on flaws are most likely to be used?

Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.

50% or more10% to 49%Under 10%
  1. >99%
    CVE-2023-44487HighKnown exploited

    The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

    CVSS7.5Published10 Oct 2023
  2. 94%

    The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension...

    CVSS5.9Published18 Dec 2023
  3. 87%

    Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service.

    CVSS7.5Published13 Aug 2019
  4. 83%

    Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service.

    CVSS7.5Published13 Aug 2019
  5. 81%

    JMSAppender in Log4j 1.2 is vulnerable to deserialization of untrusted data when the attacker has write access to the Log4j configuration.

    CVSS7.5Published14 Dec 2021
  6. 18%

    A flaw was found in keycloak in versions prior to 13.0.0.

    CVSS6.5Published8 Mar 2021
  7. 8.9%

    An issue was discovered in FasterXML jackson-databind prior to 2.7.9.4, 2.8.11.2, and 2.9.6.

    CVSS7.5Published21 Mar 2019
  8. 8.1%

    SubTypeValidator.java in FasterXML jackson-databind before 2.9.9.2 mishandles default typing when ehcache is used (because of net.sf.ehcache.transaction.manager.DefaultTransactionManagerLookup), leading to remote...

    CVSS9.8Published29 Jul 2019
  9. 7.3%

    An issue was discovered in FasterXML jackson-databind prior to 2.7.9.4, 2.8.11.2, and 2.9.6.

    CVSS7.5Published21 Mar 2019
  10. 4.6%

    A vulnerability was found in Undertow. This vulnerability impacts a server that supports the wildfly-http-client protocol.

    CVSS7.5Published19 Feb 2024
Precursor Intelligence

Running Single Sign-on? We'll keep checking.

Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.

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FAQ

Common questions, answered plainly.

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We track 101 published vulnerabilities listed under the name Single Sign-on, across 17 versions. The most recent Single Sign-on flaw added to the known-exploited list is CVE-2023-44487, on 10 October 2023.

1 is on the list of flaws known to be exploited. The most recently added is CVE-2023-44487.

Each flaw names its own versions, usually as ranges. The newest, CVE-2023-44487, affects 7.0. The versions for every exploited flaw are listed on this page.

Create a Precursor Intelligence account and track Single Sign-on. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.