# What is CVE-2020-4433? > CVE-2020-4433 is a high-severity flaw (CVSS 7.5) in Aspera Application Platform on Demand from IBM, published on 10 June 2020. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 5.3%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.edgeprotect.io/what-is/cve-2020-4433 ## At a glance - **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle. - **EdgeProtect risk score:** 48 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes. - **Severity:** High (CVSS 7.5 out of 10) - **Known to be exploited:** No, not on the list of flaws known to be exploited today - **Chance of use in the next 30 days:** 5.3% (latest exploit-likelihood forecast) - **Published:** 10 June 2020 - **Record last updated:** 21 July 2021 - **Main product:** Aspera Application Platform on Demand from IBM - **Affected products:** 10 ## What is CVE-2020-4433? In plain terms It can be attacked from anywhere on the internet with an ordinary user account, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline. ### The official description Certain IBM Aspera applications are vulnerable to a stack-based buffer overflow, caused by improper bounds checking. This could allow a remote attacker with intimate knowledge of the server to execute arbitrary code on the system with the privileges of root or cause server to crash. IBM X-Force ID: 180814. ### What kind of flaw is it? - CWE-20: Improper Input Validation - CWE-787: Out-of-bounds Write ### How an attack on it works - Where an attacker can be: Anywhere on the internet - How hard it is to pull off: Hard: conditions must line up - Login needed first: An ordinary user account - Does someone have to click: No, nobody has to do anything - What an attacker gets: Can read data, change data and take it offline Severity vector: `CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H` ## Is CVE-2020-4433 being exploited? Not that we know of It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 5.3%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 5.1%, 5.1%, 5.1%, 5.1%, 5.1%, 5.3%, 5.3%. ### Timeline - 10 June 2020: Published - 21 July 2021: Record last updated ### How EdgeProtect ranks it CVE-2020-4433 scores **48 out of 100 (Medium)**, with the action "Plan remediation". Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less: - Evidence it is being exploited: biggest factor - How severe it is: strong factor - How widely exposed it is: key context - Real threat activity around it: key context 85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it. ## Who is affected by CVE-2020-4433? The published record lists 10 products. - [Aspera Application Platform on Demand](https://www.edgeprotect.io/product/ibm/aspera_application_platform_on_demand) by [IBM](https://www.edgeprotect.io/vendors/ibm) (Application): up to 3.7.4 - [Aspera Faspex on Demand](https://www.edgeprotect.io/product/ibm/aspera_faspex_on_demand) by [IBM](https://www.edgeprotect.io/vendors/ibm) (Application): up to 3.7.4 - [Aspera High-Speed Transfer Endpoint](https://www.edgeprotect.io/product/ibm/aspera_high-speed_transfer_endpoint) by [IBM](https://www.edgeprotect.io/vendors/ibm) (Application): up to 3.9.3 - [Aspera High-Speed Transfer Server](https://www.edgeprotect.io/product/ibm/aspera_high-speed_transfer_server) by [IBM](https://www.edgeprotect.io/vendors/ibm) (Application): up to 3.9.3 - [Aspera High-Speed Transfer Server for Cloud Pak for Integration](https://www.edgeprotect.io/product/ibm/aspera_high-speed_transfer_server_for_cloud_pak_for_integration) by [IBM](https://www.edgeprotect.io/vendors/ibm) (Application): up to 3.9.10 - [Aspera Proxy Server](https://www.edgeprotect.io/product/ibm/aspera_proxy_server) by [IBM](https://www.edgeprotect.io/vendors/ibm) (Application): up to 1.4.3 - [Aspera Server on Demand](https://www.edgeprotect.io/product/ibm/aspera_server_on_demand) by [IBM](https://www.edgeprotect.io/vendors/ibm) (Application): up to 3.7.4 - [Aspera Shares on Demand](https://www.edgeprotect.io/product/ibm/aspera_shares_on_demand) by [IBM](https://www.edgeprotect.io/vendors/ibm) (Application): up to 3.7.4 - [Aspera Streaming](https://www.edgeprotect.io/product/ibm/aspera_streaming) by [IBM](https://www.edgeprotect.io/vendors/ibm) (Application): up to 3.9.3 - [Aspera Transfer Cluster Manager](https://www.edgeprotect.io/product/ibm/aspera_transfer_cluster_manager) by [IBM](https://www.edgeprotect.io/vendors/ibm) (Application): up to 1.3.1 ## How do I fix CVE-2020-4433? 1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? EdgeProtect can work it out from your public website, or you can pick it from a list. 2. **Apply the vendor’s fix.** Install the update named in the vendor’s advisory. We’ve put the advisories and patch notes first in the list. 3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in. 4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood. ### References - [exchange.xforce.ibmcloud.com](https://exchange.xforce.ibmcloud.com/vulnerabilities/180814) (Vulnerability database, Vendor advisory) - [ibm.com](https://www.ibm.com/support/pages/node/6221324) (Vendor advisory) ## Questions ### What is CVE-2020-4433? CVE-2020-4433 is a high-severity flaw in Aspera Application Platform on Demand from IBM, published on 10 June 2020. It can be attacked from anywhere on the internet with an ordinary user account, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline. ### How serious is CVE-2020-4433? It scores 7.5 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2020-4433 is 48 out of 100, which is Medium. Its action is "Plan remediation". No sign of exploitation and a low forecast. Patch it in your normal update cycle. ### Is CVE-2020-4433 being exploited? It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 5.3%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2020-4433 affect? For Aspera Application Platform on Demand from IBM: up to 3.7.4. The record lists 10 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2020-4433? Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet. ## Does CVE-2020-4433 affect you? EdgeProtect keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.edgeprotect.io/register Book a demo: https://www.edgeprotect.io/contact