# What is CVE-2023-29054? > CVE-2023-29054 is a high-severity flaw (CVSS 7.4) in Scalance X200-4p Irt from Siemens, published on 11 April 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 0.3%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2023-29054 ## 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:** 46 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes. - **Severity:** High (CVSS 7.4 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:** 0.3% (latest exploit-likelihood forecast) - **Published:** 11 April 2023 - **Record last updated:** 20 April 2023 - **Main product:** Scalance X200-4p Irt from Siemens - **Affected products:** 26 ## What is CVE-2023-29054? 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 and change data. ### The official description A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT PRO (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2P IRT (All versions < V5.5.2), SCALANCE X202-2P IRT PRO (All versions < V5.5.2), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT PRO (All versions < V5.5.2), SCALANCE XF201-3P IRT (All versions < V5.5.2), SCALANCE XF202-2P IRT (All versions < V5.5.2), SCALANCE XF204-2BA IRT (All versions < V5.5.2), SCALANCE XF204IRT (All versions < V5.5.2), SIPLUS NET SCALANCE X202-2P IRT (All versions < V5.5.2). The SSH server on affected devices is configured to offer weak ciphers by default. This could allow an unauthorized attacker in a man-in-the-middle position to read and modify any data passed over the connection between legitimate clients and the affected device. ### What kind of flaw is it? - CWE-326: Inadequate Encryption Strength ### 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 and change data Severity vector: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N` ## Is CVE-2023-29054 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 0.3%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 0.3%, 0.3%, 0.3%, 0.3%, 0.3%, 0.3%, 0.3%. ### Timeline - 11 April 2023: Published - 20 April 2023: Record last updated ### How Precursor Intelligence ranks it CVE-2023-29054 scores **46 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-2023-29054? The published record lists 26 products. Versions are as published: "before 5.5.2" means every version up to, but not including, 5.5.2. - [Scalance X200-4p Irt](https://www.precursorintelligence.com/product/siemens/scalance_x200-4p_irt) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified - [Scalance X200-4p Irt Firmware](https://www.precursorintelligence.com/product/siemens/scalance_x200-4p_irt_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before 5.5.2 - [Scalance X201-3p Irt](https://www.precursorintelligence.com/product/siemens/scalance_x201-3p_irt) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified - [Scalance X201-3p Irt Firmware](https://www.precursorintelligence.com/product/siemens/scalance_x201-3p_irt_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before 5.5.2 - [Scalance X201-3p Irt Pro](https://www.precursorintelligence.com/product/siemens/scalance_x201-3p_irt_pro) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified - [Scalance X201-3p Irt Pro Firmware](https://www.precursorintelligence.com/product/siemens/scalance_x201-3p_irt_pro_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before 5.5.2 - [Scalance X202-2irt](https://www.precursorintelligence.com/product/siemens/scalance_x202-2irt) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified - [Scalance X202-2irt Firmware](https://www.precursorintelligence.com/product/siemens/scalance_x202-2irt_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before 5.5.2 - [Scalance X202-2p Irt](https://www.precursorintelligence.com/product/siemens/scalance_x202-2p_irt) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified - [Scalance X202-2p Irt Firmware](https://www.precursorintelligence.com/product/siemens/scalance_x202-2p_irt_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before 5.5.2 - [Scalance X202-2p Irt Pro](https://www.precursorintelligence.com/product/siemens/scalance_x202-2p_irt_pro) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified - [Scalance X202-2p Irt Pro Firmware](https://www.precursorintelligence.com/product/siemens/scalance_x202-2p_irt_pro_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before 5.5.2 - [Scalance X204irt](https://www.precursorintelligence.com/product/siemens/scalance_x204irt) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified - [Scalance X204irt Firmware](https://www.precursorintelligence.com/product/siemens/scalance_x204irt_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before 5.5.2 - [Scalance X204irt Pro](https://www.precursorintelligence.com/product/siemens/scalance_x204irt_pro) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified - [Scalance X204irt Pro Firmware](https://www.precursorintelligence.com/product/siemens/scalance_x204irt_pro_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before 5.5.2 - [Scalance Xf201-3p Irt](https://www.precursorintelligence.com/product/siemens/scalance_xf201-3p_irt) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified - [Scalance Xf201-3p Irt Firmware](https://www.precursorintelligence.com/product/siemens/scalance_xf201-3p_irt_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before 5.5.2 - [Scalance Xf202-2p Irt](https://www.precursorintelligence.com/product/siemens/scalance_xf202-2p_irt) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified - [Scalance Xf202-2p Irt Firmware](https://www.precursorintelligence.com/product/siemens/scalance_xf202-2p_irt_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before 5.5.2 - [Scalance Xf204-2ba Irt](https://www.precursorintelligence.com/product/siemens/scalance_xf204-2ba_irt) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified - [Scalance Xf204-2ba Irt Firmware](https://www.precursorintelligence.com/product/siemens/scalance_xf204-2ba_irt_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before 5.5.2 - [Scalance Xf204irt](https://www.precursorintelligence.com/product/siemens/scalance_xf204irt) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified - [Scalance Xf204irt Firmware](https://www.precursorintelligence.com/product/siemens/scalance_xf204irt_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before 5.5.2 - [Siplus Net Scalance X202-2p Irt](https://www.precursorintelligence.com/product/siemens/siplus_net_scalance_x202-2p_irt) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified - [Siplus Net Scalance X202-2p Irt Firmware](https://www.precursorintelligence.com/product/siemens/siplus_net_scalance_x202-2p_irt_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before 5.5.2 ## How do I fix CVE-2023-29054? 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 - [cert-portal.siemens.com](https://cert-portal.siemens.com/productcert/pdf/ssa-479249.pdf) (Vendor advisory) ## Questions ### What is CVE-2023-29054? CVE-2023-29054 is a high-severity flaw in Scalance X200-4p Irt from Siemens, published on 11 April 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 and change data. ### How serious is CVE-2023-29054? It scores 7.4 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2023-29054 is 46 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-2023-29054 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 0.3%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2023-29054 affect? For Scalance X200-4p Irt from Siemens: version not specified. The record lists 26 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2023-29054? 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-2023-29054 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