CVE-2017-11317
Exploited in the wild. In CISA KEV since 2022‑04‑11. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
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.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Listed as exploited in the wild since 2022-04-11.
US federal agencies must remediate by 2022-05-02.
Apply updates per vendor instructions.
- Public exploits
3 sources with a proof of concept or module.
Exploit links, PoCs and Metasploit modules after sign-in- EPSS
84% chance of exploitation activity in the next 30 days, which ranks it in the 99th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
A public exploit existed 46 days before the patch.
- OpenVAS check added
- EPSS band changecritical → high
- Patch availableworkaround available, record updated
- Public exploit / PoCsource: packetstormnuclei check added
- Added to CISA KEV
- Publishedweakness classified, att&ck mapped
Affected products
And 1 more affected product. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Scored 9.8 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
- Credential AccessT1110Brute Forcemedium confidence
Sources
References in the record
- exploit-db.com/exploits/43874/
- telerik.com/support/kb/aspnet-ajax/upload-%28async%29/details/unrestricted-file-upload
- psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0006
And 20 more references. See all after sign-in
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