# What is CVE-2019-16008? > CVE-2019-16008 is a medium-severity flaw (CVSS 5.4) in IP Phone 6841 Firmware from Cisco, published on 26 January 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 0.6%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2019-16008 ## At a glance - **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle. - **Precursor Intelligence risk score:** 24 out of 100 (Low); action: Monitor. Kept up to date as the evidence changes. - **Severity:** Medium (CVSS 5.4 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:** 0.6% (latest exploit-likelihood forecast) - **Published:** 26 January 2020 - **Record last updated:** 29 January 2020 - **Main product:** IP Phone 6841 Firmware from Cisco - **Affected products:** 38 ## What is CVE-2019-16008? In plain terms It can be attacked from anywhere on the internet with an ordinary user account, but a person has to take an action first. If it works, the attacker can read some data and change some data. ### The official description A vulnerability in the web-based GUI of Cisco IP Phone 6800, 7800, and 8800 Series with Multiplatform Firmware could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based interface of an affected system. The vulnerability is due to insufficient validation of user-supplied input by the web-based GUI of an affected system. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. ### What kind of flaw is it? - CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') ### How an attack on it works - Where an attacker can be: Anywhere on the internet - How hard it is to pull off: Easy: no special conditions - Login needed first: An ordinary user account - Does someone have to click: Yes, a person has to take an action - What an attacker gets: Can read some data and change some data Severity vector: `CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N` ## Is CVE-2019-16008 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 0.6%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 0.6%, 0.6%, 0.6%, 0.6%, 0.6%, 0.6%, 0.6%. ### Timeline - 26 January 2020: Published - 29 January 2020: Record last updated ### How Precursor Intelligence ranks it CVE-2019-16008 scores **24 out of 100 (Low)**, with the action "Monitor". 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: smaller factor - Threat activity around it: smaller factor 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-2019-16008? The published record lists 38 products. Versions are as published: "before 11.3(1)" means every version up to, but not including, 11.3(1). - [IP Phone 6841 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_6841_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 6821](https://www.precursorintelligence.com/product/cisco/ip_phone_6821) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 6821 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_6821_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 6825](https://www.precursorintelligence.com/product/cisco/ip_phone_6825) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 6825 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_6825_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 6841](https://www.precursorintelligence.com/product/cisco/ip_phone_6841) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 6851](https://www.precursorintelligence.com/product/cisco/ip_phone_6851) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 6851 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_6851_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 6861](https://www.precursorintelligence.com/product/cisco/ip_phone_6861) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 6861 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_6861_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 6871](https://www.precursorintelligence.com/product/cisco/ip_phone_6871) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 6871 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_6871_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 7811](https://www.precursorintelligence.com/product/cisco/ip_phone_7811) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 7811 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_7811_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 7821](https://www.precursorintelligence.com/product/cisco/ip_phone_7821) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 7821 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_7821_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 7832](https://www.precursorintelligence.com/product/cisco/ip_phone_7832) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 7832 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_7832_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 7841](https://www.precursorintelligence.com/product/cisco/ip_phone_7841) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 7841 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_7841_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 7861](https://www.precursorintelligence.com/product/cisco/ip_phone_7861) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 7861 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_7861_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 8811](https://www.precursorintelligence.com/product/cisco/ip_phone_8811) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 8811 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_8811_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 8831](https://www.precursorintelligence.com/product/cisco/ip_phone_8831) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 8831 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_8831_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 8832](https://www.precursorintelligence.com/product/cisco/ip_phone_8832) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 8832 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_8832_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 8841](https://www.precursorintelligence.com/product/cisco/ip_phone_8841) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 8841 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_8841_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 8845](https://www.precursorintelligence.com/product/cisco/ip_phone_8845) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 8845 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_8845_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 8851](https://www.precursorintelligence.com/product/cisco/ip_phone_8851) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 8851 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_8851_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 8861](https://www.precursorintelligence.com/product/cisco/ip_phone_8861) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 8861 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_8861_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) - [IP Phone 8865](https://www.precursorintelligence.com/product/cisco/ip_phone_8865) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 8865 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_8865_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.3(1) ## How do I fix CVE-2019-16008? 1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? Precursor Intelligence 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 advisory 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 - [tools.cisco.com](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200108-iphone-xss) (Vendor advisory) ## Questions ### What is CVE-2019-16008? CVE-2019-16008 is a medium-severity flaw in IP Phone 6841 Firmware from Cisco, published on 26 January 2020. It can be attacked from anywhere on the internet with an ordinary user account, but a person has to take an action first. If it works, the attacker can read some data and change some data. ### How serious is CVE-2019-16008? It scores 5.4 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2019-16008 is 24 out of 100, which is Low. Its action is "Monitor". No sign of exploitation and a low forecast. Patch it in your normal update cycle. ### Is CVE-2019-16008 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 0.6%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2019-16008 affect? For IP Phone 6841 Firmware from Cisco: before 11.3(1). The record lists 38 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2019-16008? 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-2019-16008 affect you? Precursor Intelligence 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.precursorintelligence.com/register Book a demo: https://www.precursorintelligence.com/contact