# What is CVE-2023-4299? > CVE-2023-4299 is a high-severity flaw (CVSS 8.1) in Realport from Digi, published on 31 August 2023. 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 0.7%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2023-4299 ## 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:** 54 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes. - **Severity:** High (CVSS 8.1 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:** 0.7% (latest exploit-likelihood forecast) - **Published:** 31 August 2023 - **Record last updated:** 6 September 2023 - **Main product:** Realport from Digi - **Affected products:** 39 ## What is CVE-2023-4299? In plain terms It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline. ### The official description Digi RealPort Protocol is vulnerable to a replay attack that may allow an attacker to bypass authentication to access connected equipment. ### What kind of flaw is it? - CWE-836: Use of Password Hash Instead of Password for Authentication ### 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: No login needed - 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:N/UI:N/S:U/C:H/I:H/A:H` ## Is CVE-2023-4299 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 0.7%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 0.7%, 0.7%, 0.7%, 0.7%, 0.7%, 0.7%, 0.7%. ### Timeline - 31 August 2023: Published - 6 September 2023: Record last updated ### How Precursor Intelligence ranks it CVE-2023-4299 scores **54 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-2023-4299? The published record lists 39 products. Versions are as published: "before 2.26.2.4" means every version up to, but not including, 2.26.2.4. - [Realport](https://www.precursorintelligence.com/product/digi/realport) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Application): up to 1.9-40, up to 4.8.488.0 - [Cm](https://www.precursorintelligence.com/product/digi/cm) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [Cm Firmware](https://www.precursorintelligence.com/product/digi/cm_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): version not specified - [Connect Es](https://www.precursorintelligence.com/product/digi/connect_es) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [Connect Es Firmware](https://www.precursorintelligence.com/product/digi/connect_es_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): before 2.26.2.4 - [Connect Sp](https://www.precursorintelligence.com/product/digi/connect_sp) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [Connect Sp Firmware](https://www.precursorintelligence.com/product/digi/connect_sp_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): version not specified - Connectport Lts 8/16/32 by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - Connectport Lts 8/16/32 Firmware by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): before 1.4.9 - Connectport Ts 8/16 by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - Connectport Ts 8/16 Firmware by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): before 2.26.2.4 - [One Ia](https://www.precursorintelligence.com/product/digi/one_ia) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [One Ia Firmware](https://www.precursorintelligence.com/product/digi/one_ia_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): version not specified - [One Iap](https://www.precursorintelligence.com/product/digi/one_iap) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [One Iap Firmware](https://www.precursorintelligence.com/product/digi/one_iap_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): version not specified - [One Sp](https://www.precursorintelligence.com/product/digi/one_sp) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [One Sp Firmware](https://www.precursorintelligence.com/product/digi/one_sp_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): version not specified - [One Sp Ia](https://www.precursorintelligence.com/product/digi/one_sp_ia) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [One Sp Ia Firmware](https://www.precursorintelligence.com/product/digi/one_sp_ia_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): version not specified - [Passport](https://www.precursorintelligence.com/product/digi/passport) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [Passport Firmware](https://www.precursorintelligence.com/product/digi/passport_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): version not specified - [Portserver Ts](https://www.precursorintelligence.com/product/digi/portserver_ts) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [Portserver Ts Firmware](https://www.precursorintelligence.com/product/digi/portserver_ts_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): version not specified - [Portserver Ts M Mei](https://www.precursorintelligence.com/product/digi/portserver_ts_m_mei) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [Portserver Ts M Mei Firmware](https://www.precursorintelligence.com/product/digi/portserver_ts_m_mei_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): version not specified - [Portserver Ts Mei](https://www.precursorintelligence.com/product/digi/portserver_ts_mei) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [Portserver Ts Mei Firmware](https://www.precursorintelligence.com/product/digi/portserver_ts_mei_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): version not specified - [Portserver Ts Mei Hardened](https://www.precursorintelligence.com/product/digi/portserver_ts_mei_hardened) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [Portserver Ts Mei Hardened Firmware](https://www.precursorintelligence.com/product/digi/portserver_ts_mei_hardened_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): version not specified - [Portserver Ts P Mei](https://www.precursorintelligence.com/product/digi/portserver_ts_p_mei) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [Portserver Ts P Mei Firmware](https://www.precursorintelligence.com/product/digi/portserver_ts_p_mei_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): version not specified - [Transport Wr11 Xt](https://www.precursorintelligence.com/product/digi/transport_wr11_xt) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [Transport Wr11 Xt Firmware](https://www.precursorintelligence.com/product/digi/transport_wr11_xt_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): version not specified - [Wr21](https://www.precursorintelligence.com/product/digi/wr21) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [Wr21 Firmware](https://www.precursorintelligence.com/product/digi/wr21_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): version not specified - [Wr31](https://www.precursorintelligence.com/product/digi/wr31) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [Wr31 Firmware](https://www.precursorintelligence.com/product/digi/wr31_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): version not specified - [Wr44 R](https://www.precursorintelligence.com/product/digi/wr44_r) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Hardware): version not specified - [Wr44 R Firmware](https://www.precursorintelligence.com/product/digi/wr44_r_firmware) by [Digi](https://www.precursorintelligence.com/vendors/digi) (Operating system): version not specified ## How do I fix CVE-2023-4299? 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 - [digi.com](https://www.digi.com/getattachment/resources/security/alerts/realport-cves/Dragos-Disclosure-Statement.pdf) (Vendor advisory) - [cisa.gov](https://www.cisa.gov/news-events/ics-advisories/icsa-23-243-04) (Third-party advisory, Government resource) ## Questions ### What is CVE-2023-4299? CVE-2023-4299 is a high-severity flaw in Realport from Digi, published on 31 August 2023. It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline. ### How serious is CVE-2023-4299? It scores 8.1 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2023-4299 is 54 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-2023-4299 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 0.7%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2023-4299 affect? For Realport from Digi: up to 1.9-40, up to 4.8.488.0. The record lists 39 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2023-4299? 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-2023-4299 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