CVE-2017-7657 Details
In Eclipse Jetty, versions 9.2.x and older, 9.3.x (all configurations), and 9.4.x (non-default configuration with RFC2616 compliance enabled), transfer-encoding chunks are handled poorly. The chunk length parsing was vulnerable to an integer overflow. Thus a large chunk size could be interpreted as a smaller chunk size and content sent as chunk body could be interpreted as a pipelined request. If Jetty was deployed behind an intermediary that imposed some authorization and that intermediary allowed arbitrarily large chunks to be passed on unchanged, then this flaw could be used to bypass the authorization imposed by the intermediary as the fake pipelined request would not be interpreted by the intermediary as a request.
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Exploit prediction scoring system (EPSS) score for CVE-2017-7657
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
3.41 Probability of exploitation activity being observed over the next 30 days (87th percentile)
CVSS score for CVE-2017-7657
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
9.8 Critical
Products affected by CVE-2017-7657
Jetty 8.1.1
Jetty 8.1.10
Jetty 8.1.11
Jetty 8.1.12
Jetty 8.1.13
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
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CVE-2017-7657 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 7,858 26.13%
CN 3,416 11.36%
DE 1,472 4.90%
JP 1,392 4.63%
AU 1,075 3.58%
KR 947 3.15%
FR 911 3.03%
SG 891 2.96%
IN 882 2.93%
CA 762 2.53%

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CVE-2017-7657 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 19,646 83.41%
Telecommunications 2,952 12.53%
Education 365 1.55%
Healthcare/Wellness 108 0.46%
Government/Politics 102 0.43%
Business Services 59 0.25%
Manufacturing 58 0.25%
Media/Entertainment 51 0.22%
Finance 43 0.18%
Retail 29 0.12%

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