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CISA KEV · Known exploitedCritical

CVE-2017-11317

Telerik User Interface (UI) for ASP.NET AJAX

Telerik.Web.UI in Progress Telerik UI for ASP.NET AJAX before R1 2017 and R2 before R2 2017 SP2 uses weak RadAsyncUpload encryption, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.

CVSS
9.8
EPSS
83.5%
99.7% percentile
CISA KEV
Listed
Published
2017.08.24
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability83.5%
Technical severityCVSS 9.8

Vulnerability overview

Telerik.Web.UI in Progress Telerik UI for ASP.NET AJAX before R1 2017 and R2 before R2 2017 SP2 uses weak RadAsyncUpload encryption, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.

Affected product and versions

Product
Telerik User Interface (UI) for ASP.NET AJAX
Affected versions
<= 2016.3.1027, 2017.2.503, 2017.2.621
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

Apply updates per vendor instructions.

Due date: 2022.05.02
  1. 1
    Identify

    Confirm that Telerik User Interface (UI) for ASP.NET AJAX and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-326
KEV added
2022.04.11
Ransomware use
미확인
CVE-2017-11317 — Telerik User Interface (UI) for ASP.NET AJAX | SECUFOCUS NOW