CVE-2024-54017: CWE-334: Small Space of Random Values in Siemens SIPROTEC 5 6MD84 (CP300)
A vulnerability has been identified in SIPROTEC 5 6MD84 (CP300) (All versions < V11.0), SIPROTEC 5 6MD85 (CP200) (All versions), SIPROTEC 5 6MD85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 6MD86 (CP200) (All versions), SIPROTEC 5 6MD86 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 6MD89 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 6MU85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7KE85 (CP200) (All versions), SIPROTEC 5 7KE85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SA82 (CP100) (All versions >= V7.80), SIPROTEC 5 7SA82 (CP150) (All versions < V11.0), SIPROTEC 5 7SA84 (CP200) (All versions), SIPROTEC 5 7SA86 (CP200) (All versions), SIPROTEC 5 7SA86 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SA87 (CP200) (All versions), SIPROTEC 5 7SA87 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SD82 (CP100) (All versions >= V7.80), SIPROTEC 5 7SD82 (CP150) (All versions < V11.0), SIPROTEC 5 7SD84 (CP200) (All versions), SIPROTEC 5 7SD86 (CP200) (All versions), SIPROTEC 5 7SD86 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SD87 (CP200) (All versions), SIPROTEC 5 7SD87 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SJ81 (CP100) (All versions >= V7.80), SIPROTEC 5 7SJ81 (CP150) (All versions < V11.0), SIPROTEC 5 7SJ82 (CP100) (All versions >= V7.80), SIPROTEC 5 7SJ82 (CP150) (All versions < V11.0), SIPROTEC 5 7SJ85 (CP200) (All versions), SIPROTEC 5 7SJ85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SJ86 (CP200) (All versions), SIPROTEC 5 7SJ86 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SK82 (CP100) (All versions >= V7.80), SIPROTEC 5 7SK82 (CP150) (All versions < V11.0), SIPROTEC 5 7SK85 (CP200) (All versions), SIPROTEC 5 7SK85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SL82 (CP100) (All versions >= V7.80), SIPROTEC 5 7SL82 (CP150) (All versions < V11.0), SIPROTEC 5 7SL86 (CP200) (All versions), SIPROTEC 5 7SL86 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SL87 (CP200) (All versions), SIPROTEC 5 7SL87 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SS85 (CP200) (All versions), SIPROTEC 5 7SS85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7ST85 (CP200) (All versions), SIPROTEC 5 7ST85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7ST86 (CP300) (All versions < V11.0), SIPROTEC 5 7SX82 (CP150) (All versions < V11.0), SIPROTEC 5 7SX85 (CP300) (All versions < V11.0), SIPROTEC 5 7SY82 (CP150) (All versions < V11.0), SIPROTEC 5 7UM85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7UT82 (CP100) (All versions >= V7.80), SIPROTEC 5 7UT82 (CP150) (All versions < V11.0), SIPROTEC 5 7UT85 (CP200) (All versions), SIPROTEC 5 7UT85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7UT86 (CP200) (All versions), SIPROTEC 5 7UT86 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7UT87 (CP200) (All versions), SIPROTEC 5 7UT87 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7VE85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7VK87 (CP200) (All versions), SIPROTEC 5 7VK87 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7VU85 (CP300) (All versions < V11.0), SIPROTEC 5 Compact 7SX800 (CP050) (All versions < V11.0). Affected devices do not use sufficiently random values to create session identifiers. This could allow an unauthenticated remote attacker to brute force a session identifier and gain read access to limited information from the web server without authorization.
AI Analysis
Technical Summary
This vulnerability (CVE-2024-54017) affects numerous Siemens SIPROTEC 5 devices across various models and firmware versions prior to V11.0 or within specified version ranges. The root cause is the generation of session identifiers with a small space of random values, making them susceptible to brute force attacks by unauthenticated remote attackers. Exploiting this flaw allows attackers to gain unauthorized read access to limited information from the affected device's web server. The CVSS v3.1 base score is 5.3, reflecting a medium severity with network attack vector, low attack complexity, no privileges required, no user interaction, and impact limited to confidentiality only. Siemens has not published an official fix or remediation level, and no patches are currently linked.
Potential Impact
An unauthenticated remote attacker can brute force session identifiers due to insufficient randomness, potentially gaining unauthorized read access to limited information from the affected SIPROTEC 5 device's web server. The impact is limited to confidentiality; integrity and availability are not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the Siemens vendor advisory for current remediation guidance. Until an official fix is available, consider restricting network access to the affected devices' web interfaces to trusted management networks only to reduce exposure. Monitor Siemens advisories for updates on patches or mitigations.
CVE-2024-54017: CWE-334: Small Space of Random Values in Siemens SIPROTEC 5 6MD84 (CP300)
Description
A vulnerability has been identified in SIPROTEC 5 6MD84 (CP300) (All versions < V11.0), SIPROTEC 5 6MD85 (CP200) (All versions), SIPROTEC 5 6MD85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 6MD86 (CP200) (All versions), SIPROTEC 5 6MD86 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 6MD89 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 6MU85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7KE85 (CP200) (All versions), SIPROTEC 5 7KE85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SA82 (CP100) (All versions >= V7.80), SIPROTEC 5 7SA82 (CP150) (All versions < V11.0), SIPROTEC 5 7SA84 (CP200) (All versions), SIPROTEC 5 7SA86 (CP200) (All versions), SIPROTEC 5 7SA86 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SA87 (CP200) (All versions), SIPROTEC 5 7SA87 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SD82 (CP100) (All versions >= V7.80), SIPROTEC 5 7SD82 (CP150) (All versions < V11.0), SIPROTEC 5 7SD84 (CP200) (All versions), SIPROTEC 5 7SD86 (CP200) (All versions), SIPROTEC 5 7SD86 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SD87 (CP200) (All versions), SIPROTEC 5 7SD87 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SJ81 (CP100) (All versions >= V7.80), SIPROTEC 5 7SJ81 (CP150) (All versions < V11.0), SIPROTEC 5 7SJ82 (CP100) (All versions >= V7.80), SIPROTEC 5 7SJ82 (CP150) (All versions < V11.0), SIPROTEC 5 7SJ85 (CP200) (All versions), SIPROTEC 5 7SJ85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SJ86 (CP200) (All versions), SIPROTEC 5 7SJ86 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SK82 (CP100) (All versions >= V7.80), SIPROTEC 5 7SK82 (CP150) (All versions < V11.0), SIPROTEC 5 7SK85 (CP200) (All versions), SIPROTEC 5 7SK85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SL82 (CP100) (All versions >= V7.80), SIPROTEC 5 7SL82 (CP150) (All versions < V11.0), SIPROTEC 5 7SL86 (CP200) (All versions), SIPROTEC 5 7SL86 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SL87 (CP200) (All versions), SIPROTEC 5 7SL87 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7SS85 (CP200) (All versions), SIPROTEC 5 7SS85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7ST85 (CP200) (All versions), SIPROTEC 5 7ST85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7ST86 (CP300) (All versions < V11.0), SIPROTEC 5 7SX82 (CP150) (All versions < V11.0), SIPROTEC 5 7SX85 (CP300) (All versions < V11.0), SIPROTEC 5 7SY82 (CP150) (All versions < V11.0), SIPROTEC 5 7UM85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7UT82 (CP100) (All versions >= V7.80), SIPROTEC 5 7UT82 (CP150) (All versions < V11.0), SIPROTEC 5 7UT85 (CP200) (All versions), SIPROTEC 5 7UT85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7UT86 (CP200) (All versions), SIPROTEC 5 7UT86 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7UT87 (CP200) (All versions), SIPROTEC 5 7UT87 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7VE85 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7VK87 (CP200) (All versions), SIPROTEC 5 7VK87 (CP300) (All versions >= V7.80 < V11.0), SIPROTEC 5 7VU85 (CP300) (All versions < V11.0), SIPROTEC 5 Compact 7SX800 (CP050) (All versions < V11.0). Affected devices do not use sufficiently random values to create session identifiers. This could allow an unauthenticated remote attacker to brute force a session identifier and gain read access to limited information from the web server without authorization.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2024-54017) affects numerous Siemens SIPROTEC 5 devices across various models and firmware versions prior to V11.0 or within specified version ranges. The root cause is the generation of session identifiers with a small space of random values, making them susceptible to brute force attacks by unauthenticated remote attackers. Exploiting this flaw allows attackers to gain unauthorized read access to limited information from the affected device's web server. The CVSS v3.1 base score is 5.3, reflecting a medium severity with network attack vector, low attack complexity, no privileges required, no user interaction, and impact limited to confidentiality only. Siemens has not published an official fix or remediation level, and no patches are currently linked.
Potential Impact
An unauthenticated remote attacker can brute force session identifiers due to insufficient randomness, potentially gaining unauthorized read access to limited information from the affected SIPROTEC 5 device's web server. The impact is limited to confidentiality; integrity and availability are not affected. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the Siemens vendor advisory for current remediation guidance. Until an official fix is available, consider restricting network access to the affected devices' web interfaces to trusted management networks only to reduce exposure. Monitor Siemens advisories for updates on patches or mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- siemens
- Date Reserved
- 2024-11-27T12:09:07.611Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a02f117cbff5d8610c13a47
Added to database: 5/12/2026, 9:21:27 AM
Last enriched: 5/12/2026, 9:40:09 AM
Last updated: 5/13/2026, 4:47:05 AM
Views: 7
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