CVE-2019-9842

CVSS V2 Medium 6.5 CVSS V3 High 7.2
Description
madskristensen MiniBlog through 2018-05-18 allows remote attackers to execute arbitrary ASPX code via an IMG element with a data: URL, because SaveFilesToDisk in app_code/handlers/PostHandler.cs writes a decoded base64 string to a file without validating the extension.
Overview
  • CVE ID
  • CVE-2019-9842
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2019-06-14T20:29:00
  • Last Modified Date
  • 2019-06-19T18:16:38
Weakness Enumerations
CWE URL
CWE-434 http://cwe.mitre.org/data/definitions/434.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:miniblog_project:miniblog:*:*:*:*:*:*:*:* 1 OR 2018-05-18
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:S/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 6.5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • HIGH
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.2
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.2
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://rastating.github.io/miniblog-remote-code-execution/ Exploit Third Party Advisory
https://github.com/madskristensen/MiniBlog/blob/1a7ae45ddba484e2c8f808e288e018748c9ddb57/Website/app_code/handlers/PostHandler.cs#L85 Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-9842
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9842
History
Created Old Value New Value Data Type Notes
2022-05-10 07:49:57 Added to TrackCVE
2022-12-03 22:08:21 2019-06-14T20:29Z 2019-06-14T20:29:00 CVE Published Date updated
2022-12-03 22:08:21 2019-06-19T18:16:38 CVE Modified Date updated
2022-12-03 22:08:21 Analyzed Vulnerability Status updated