CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
34.6%
Observable timing discrepancy vulnerability in Apache Pulsar SASL Authentication Provider can allow an attacker to forge a SASL Role Token that will pass signature verification.
Users are recommended to upgrade to version 2.11.3, 3.0.2, or 3.1.1 which fixes the issue. Users should also consider updating the configured secret in the saslJaasServerRoleTokenSignerSecretPath
file.
Any component matching an above version running the SASL Authentication Provider is affected. That includes the Pulsar Broker, Proxy, Websocket Proxy, or Function Worker.
2.11 Pulsar users should upgrade to at least 2.11.3.
3.0 Pulsar users should upgrade to at least 3.0.2.
3.1 Pulsar users should upgrade to at least 3.1.1.
Any users running Pulsar 2.8, 2.9, 2.10, and earlier should upgrade to one of the above patched versions.
For additional details on this attack vector, please refer to https://codahale.com/a-lesson-in-timing-attacks/ .
www.openwall.com/lists/oss-security/2024/02/07/1
github.com/apache/pulsar
github.com/apache/pulsar/commit/6274fa01a75d74d559bb7e514c970f1fc07d15bc
github.com/apache/pulsar/commit/bc1019fa8ed37b8a4c8bb01e3662c6c015e1bc27
github.com/apache/pulsar/commit/c05954e66ff33098aeb848f4bde51613ace7e47e
github.com/apache/pulsar/commit/c27beca64cc93848c40a374f19eaf4d3cc4f4f03
github.com/apache/pulsar/pull/21061
lists.apache.org/thread/5kgmvvolf5tzp5rz9xjwfg2ncwvqqgl5
nvd.nist.gov/vuln/detail/CVE-2023-51437
www.openwall.com/lists/oss-security/2024/02/07/1
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
34.6%