# What is CVE-2019-1765? > CVE-2019-1765 is a medium-severity flaw (CVSS 6.5) in IP Conference Phone 8832 from Cisco, published on 22 March 2019. 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 1.4%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2019-1765 ## 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:** 47 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes. - **Severity:** Medium (CVSS 6.5 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:** 1.4% (latest exploit-likelihood forecast) - **Published:** 22 March 2019 - **Record last updated:** 9 October 2019 - **Main product:** IP Conference Phone 8832 from Cisco - **Affected products:** 8 ## What is CVE-2019-1765? 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 change data. ### The official description A vulnerability in the web-based management interface of Session Initiation Protocol (SIP) Software for Cisco IP Phone 8800 Series could allow an authenticated, remote attacker to write arbitrary files to the filesystem. The vulnerability is due to insufficient input validation and file-level permissions. An attacker could exploit this vulnerability by uploading invalid files to an affected device. A successful exploit could allow the attacker to write files in arbitrary locations on the filesystem. This vulnerability affects Cisco IP Phone 8800 Series products running a SIP Software release prior to 11.0(5) for Wireless IP Phone 8821 and 8821-EX; and 12.5(1)SR1 for the IP Conference Phone 8832 and the rest of the IP Phone 8800 Series. ### What kind of flaw is it? - CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') ### 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: No, nobody has to do anything - What an attacker gets: Can change data Severity vector: `CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N` ## Is CVE-2019-1765 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 1.4%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 1.4%, 1.4%, 1.4%, 1.4%, 1.4%, 1.4%, 1.4%. ### Timeline - 22 March 2019: Published - 9 October 2019: Record last updated ### How Precursor Intelligence ranks it CVE-2019-1765 scores **47 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: 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-2019-1765? The published record lists 8 products. Versions are as published: "before 12.5(1)sr1" means every version up to, but not including, 12.5(1)sr1. - [IP Conference Phone 8832](https://www.precursorintelligence.com/product/cisco/ip_conference_phone_8832) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Conference Phone 8832 Firmware](https://www.precursorintelligence.com/product/cisco/ip_conference_phone_8832_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 12.5(1)sr1 - [IP Phone 8800](https://www.precursorintelligence.com/product/cisco/ip_phone_8800) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 8800 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_8800_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 12.5(1)sr1 - [IP Phone 8821](https://www.precursorintelligence.com/product/cisco/ip_phone_8821) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 8821 Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_8821_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.0(5) - [IP Phone 8821-EX](https://www.precursorintelligence.com/product/cisco/ip_phone_8821-ex) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Hardware): version not specified - [IP Phone 8821-EX Firmware](https://www.precursorintelligence.com/product/cisco/ip_phone_8821-ex_firmware) by [Cisco](https://www.precursorintelligence.com/vendors/cisco) (Operating system): before 11.0(5) ## How do I fix CVE-2019-1765? 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-20190320-ipptv) (Vendor advisory) ## Questions ### What is CVE-2019-1765? CVE-2019-1765 is a medium-severity flaw in IP Conference Phone 8832 from Cisco, published on 22 March 2019. 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 change data. ### How serious is CVE-2019-1765? It scores 6.5 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2019-1765 is 47 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-2019-1765 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 1.4%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2019-1765 affect? For IP Conference Phone 8832 from Cisco: version not specified. The record lists 8 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2019-1765? 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-2019-1765 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