CVE-2017-5656

Cxf vulnerability

CVSS

7.5

EPSS

6.8%

EPSS pct

93th

Exploited

No known

Apache CXF's STSClient before 3.1.11 and 3.0.13 uses a flawed way of caching tokens that are associated with delegation tokens, which means that an attacker could craft a token which would return an identifer corresponding to a cached token for another user.

Affected vendor

Apache

Affected product

Cxf

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness type (CWE)

CWE-384 — Session Fixation

Published

2017-04-18

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 6.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2017-5656

Confirm whether Apache Cxf is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-5656.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-5656

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-5656 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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