CVE-2017-0897

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Summary

CVECVE-2017-0897
StatePUBLISHED
Assignerhackerone
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-06-22 21:29:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionExpressionEngine version 2.x < 2.11.8 and version 3.x < 3.5.5 create an object signing token with weak entropy. Successfully guessing the token can lead to remote code execution.

Risk And Classification

Primary CVSS: v3.0 7.5 HIGH from [email protected]

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

Problem Types: CWE-330 | CWE-331 | CWE-330 Use of Insufficiently Random Values (CWE-330)

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary7.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
2.0[email protected]Primary5AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

AV:N/AC:L/Au:N/C:P/I:N/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Expressionengine Expressionengine 2.0.0 public_beta All All
Application Expressionengine Expressionengine 2.0.1 public_beta All All
Application Expressionengine Expressionengine 2.0.2 public_beta All All
Application Expressionengine Expressionengine 2.1.0 All All All
Application Expressionengine Expressionengine 2.1.1 All All All
Application Expressionengine Expressionengine 2.1.2 All All All
Application Expressionengine Expressionengine 2.1.3 All All All
Application Expressionengine Expressionengine 2.1.4 All All All
Application Expressionengine Expressionengine 2.1.5 All All All
Application Expressionengine Expressionengine 2.10.0 All All All
Application Expressionengine Expressionengine 2.10.1 All All All
Application Expressionengine Expressionengine 2.10.2 All All All
Application Expressionengine Expressionengine 2.10.3 All All All
Application Expressionengine Expressionengine 2.11.0 All All All
Application Expressionengine Expressionengine 2.11.1 All All All
Application Expressionengine Expressionengine 2.11.2 All All All
Application Expressionengine Expressionengine 2.11.3 All All All
Application Expressionengine Expressionengine 2.11.4 All All All
Application Expressionengine Expressionengine 2.11.5 All All All
Application Expressionengine Expressionengine 2.11.6 All All All
Application Expressionengine Expressionengine 2.11.7 All All All
Application Expressionengine Expressionengine 2.2.0 All All All
Application Expressionengine Expressionengine 2.2.1 All All All
Application Expressionengine Expressionengine 2.2.2 All All All
Application Expressionengine Expressionengine 2.3.0 All All All
Application Expressionengine Expressionengine 2.3.1 All All All
Application Expressionengine Expressionengine 2.4.0 All All All
Application Expressionengine Expressionengine 2.5.0 All All All
Application Expressionengine Expressionengine 2.5.1 All All All
Application Expressionengine Expressionengine 2.5.2 All All All
Application Expressionengine Expressionengine 2.5.3 All All All
Application Expressionengine Expressionengine 2.5.4 All All All
Application Expressionengine Expressionengine 2.5.5 All All All
Application Expressionengine Expressionengine 2.6.0 All All All
Application Expressionengine Expressionengine 2.6.1 All All All
Application Expressionengine Expressionengine 2.7.0 All All All
Application Expressionengine Expressionengine 2.7.1 All All All
Application Expressionengine Expressionengine 2.7.2 All All All
Application Expressionengine Expressionengine 2.7.3 All All All
Application Expressionengine Expressionengine 2.8.0 All All All
Application Expressionengine Expressionengine 2.8.1 All All All
Application Expressionengine Expressionengine 2.9.0 All All All
Application Expressionengine Expressionengine 2.9.1 All All All
Application Expressionengine Expressionengine 2.9.2 All All All
Application Expressionengine Expressionengine 2.9.3 All All All
Application Expressionengine Expressionengine 3.0.0 All All All
Application Expressionengine Expressionengine 3.0.1 All All All
Application Expressionengine Expressionengine 3.0.2 All All All
Application Expressionengine Expressionengine 3.0.3 All All All
Application Expressionengine Expressionengine 3.0.4 All All All
Application Expressionengine Expressionengine 3.0.5 All All All
Application Expressionengine Expressionengine 3.0.6 All All All
Application Expressionengine Expressionengine 3.1.0 All All All
Application Expressionengine Expressionengine 3.1.1 All All All
Application Expressionengine Expressionengine 3.1.2 All All All
Application Expressionengine Expressionengine 3.1.3 All All All
Application Expressionengine Expressionengine 3.1.4 All All All
Application Expressionengine Expressionengine 3.2.0 All All All
Application Expressionengine Expressionengine 3.2.1 All All All
Application Expressionengine Expressionengine 3.3.0 All All All
Application Expressionengine Expressionengine 3.3.1 All All All
Application Expressionengine Expressionengine 3.3.2 All All All
Application Expressionengine Expressionengine 3.3.3 All All All
Application Expressionengine Expressionengine 3.3.4 All All All
Application Expressionengine Expressionengine 3.4.0 All All All
Application Expressionengine Expressionengine 3.4.1 All All All
Application Expressionengine Expressionengine 3.4.2 All All All
Application Expressionengine Expressionengine 3.4.3 All All All
Application Expressionengine Expressionengine 3.4.4 All All All
Application Expressionengine Expressionengine 3.4.5 All All All
Application Expressionengine Expressionengine 3.4.6 All All All
Application Expressionengine Expressionengine 3.4.7 All All All
Application Expressionengine Expressionengine 3.5.0 All All All
Application Expressionengine Expressionengine 3.5.1 All All All
Application Expressionengine Expressionengine 3.5.2 All All All
Application Expressionengine Expressionengine 3.5.3 All All All
Application Expressionengine Expressionengine 3.5.4 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA EllisLab ExpressionEngine affected Versions before 2.11.8 and 3.5.5 Not specified

References

ReferenceSourceLinkTags
ExpressionEngine CVE-2017-0897 Insufficient Entropy Weakness af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
ExpressionEngine 2.x Change Log — ExpressionEngine 2.11.9 documentation af854a3a-2127-422b-91ae-364da2661108 docs.expressionengine.com Vendor Advisory
ExpressionEngine 3.x Change Log — ExpressionEngine 3.4.4 documentation af854a3a-2127-422b-91ae-364da2661108 docs.expressionengine.com Vendor Advisory
ExpressionEngine 3.5.5 and 2.11.8 Released | Blog | ExpressionEngine af854a3a-2127-422b-91ae-364da2661108 expressionengine.com Vendor Advisory
HackerOne af854a3a-2127-422b-91ae-364da2661108 hackerone.com Permissions Required
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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