Siemens SIPROTEC 5 Compact 7SX800 prior 9.40 HTTP Request Parameter null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Siemens SIPROTEC 5 6MD85, SIPROTEC 5 6MD86, SIPROTEC 5 6MD89, SIPROTEC 5 6MU85, SIPROTEC 5 7KE85, SIPROTEC 5 7SA82, SIPROTEC 5 7SA84, SIPROTEC 5 7SA86, SIPROTEC 5 7SA87, SIPROTEC 5 7SD82, SIPROTEC 5 7SD84, SIPROTEC 5 7SD86, SIPROTEC 5 7SD87, SIPROTEC 5 7SJ81, SIPROTEC 5 7SJ82, SIPROTEC 5 7SJ85, SIPROTEC 5 7SJ86, SIPROTEC 5 7SK82, SIPROTEC 5 7SK85, SIPROTEC 5 7SL82, SIPROTEC 5 7SL86, SIPROTEC 5 7SL87, SIPROTEC 5 7SS85, SIPROTEC 5 7ST85, SIPROTEC 5 7ST86, SIPROTEC 5 7SX82, SIPROTEC 5 7SX85, SIPROTEC 5 7UM85, SIPROTEC 5 7UT82, SIPROTEC 5 7UT85, SIPROTEC 5 7UT86, SIPROTEC 5 7UT87, SIPROTEC 5 7VE85, SIPROTEC 5 7VK87, SIPROTEC 5 7VU85, SIPROTEC 5 Communication Module ETH-BA-2EL, SIPROTEC 5 Communication Module ETH-BB-2FO, SIPROTEC 5 Communication Module ETH-BD-2FO and SIPROTEC 5 Compact 7SX800. Impacted is an unknown function of the component HTTP Request Parameter Handler. Such manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2023-28766. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Siemens SIPROTEC 5 6MD85, SIPROTEC 5 6MD86, SIPROTEC 5 6MD89, SIPROTEC 5 6MU85, SIPROTEC 5 7KE85, SIPROTEC 5 7SA82, SIPROTEC 5 7SA84, SIPROTEC 5 7SA86, SIPROTEC 5 7SA87, SIPROTEC 5 7SD82, SIPROTEC 5 7SD84, SIPROTEC 5 7SD86, SIPROTEC 5 7SD87, SIPROTEC 5 7SJ81, SIPROTEC 5 7SJ82, SIPROTEC 5 7SJ85, SIPROTEC 5 7SJ86, SIPROTEC 5 7SK82, SIPROTEC 5 7SK85, SIPROTEC 5 7SL82, SIPROTEC 5 7SL86, SIPROTEC 5 7SL87, SIPROTEC 5 7SS85, SIPROTEC 5 7ST85, SIPROTEC 5 7ST86, SIPROTEC 5 7SX82, SIPROTEC 5 7SX85, SIPROTEC 5 7UM85, SIPROTEC 5 7UT82, SIPROTEC 5 7UT85, SIPROTEC 5 7UT86, SIPROTEC 5 7UT87, SIPROTEC 5 7VE85, SIPROTEC 5 7VK87, SIPROTEC 5 7VU85, SIPROTEC 5 Communication Module ETH-BA-2EL, SIPROTEC 5 Communication Module ETH-BB-2FO, SIPROTEC 5 Communication Module ETH-BD-2FO and SIPROTEC 5 Compact 7SX800. It has been rated as problematic. Affected by this issue is an unknown part of the component HTTP Request Parameter Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. CVE summarizes:

A vulnerability has been identified in SIPROTEC 5 6MD85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 6MD86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 6MD89 (CP300) (All versions >= V7.80 < V9.64), SIPROTEC 5 6MU85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7KE85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SA82 (CP100) (All versions < V8.90), SIPROTEC 5 7SA82 (CP150) (All versions < V9.40), SIPROTEC 5 7SA86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SA87 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SD82 (CP100) (All versions < V8.90), SIPROTEC 5 7SD82 (CP150) (All versions < V9.40), SIPROTEC 5 7SD86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SD87 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SJ81 (CP100) (All versions < V8.89), SIPROTEC 5 7SJ81 (CP150) (All versions < V9.40), SIPROTEC 5 7SJ82 (CP100) (All versions < V8.89), SIPROTEC 5 7SJ82 (CP150) (All versions < V9.40), SIPROTEC 5 7SJ85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SJ86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SK82 (CP100) (All versions < V8.89), SIPROTEC 5 7SK82 (CP150) (All versions < V9.40), SIPROTEC 5 7SK85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SL82 (CP100) (All versions < V8.90), SIPROTEC 5 7SL82 (CP150) (All versions < V9.40), SIPROTEC 5 7SL86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SL87 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SS85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7ST85 (CP300) (All versions >= V7.80 < V9.64), SIPROTEC 5 7ST86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7SX82 (CP150) (All versions < V9.40), SIPROTEC 5 7SX85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7UM85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7UT82 (CP100) (All versions < V8.90), SIPROTEC 5 7UT82 (CP150) (All versions < V9.40), SIPROTEC 5 7UT85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7UT86 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7UT87 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7VE85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7VK87 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 7VU85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 Communication Module ETH-BA-2EL (Rev.1) (All versions < V9.40 installed on CP150 and CP300 devices), SIPROTEC 5 Communication Module ETH-BA-2EL (Rev.1) (All versions < V8.89 installed on CP100 devices), SIPROTEC 5 Communication Module ETH-BB-2FO (Rev. 1) (All versions < V9.40 installed on CP150 and CP300 devices), SIPROTEC 5 Communication Module ETH-BB-2FO (Rev. 1) (All versions < V8.89 installed on CP100 devices), SIPROTEC 5 Communication Module ETH-BD-2FO (All versions < V9.40), SIPROTEC 5 Compact 7SX800 (CP050) (All versions < V9.40). Affected devices lack proper validation of http request parameters of the hosted web service. An unauthenticated remote attacker could send specially crafted packets that could cause denial of service condition of the target device.

The weakness was shared 04/11/2023 as ssa-322980. The advisory is available at cert-portal.siemens.com. This vulnerability is handled as CVE-2023-28766 since 03/23/2023. The technical details are unknown and an exploit is not available.

Upgrading to version 9.40 eliminates this vulnerability.

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Productinfo

Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (Siemens AG): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SIPROTEC 5 6MD85/SIPROTEC 5 6MD86/SIPROTEC 5 6MD89/SIPROTEC 5 6MU85/SIPROTEC 5 7KE85/SIPROTEC 5 7SA82/SIPROTEC 5 7SA84/SIPROTEC 5 7SA86/SIPROTEC 5 7SA87/SIPROTEC 5 7SD82/SIPROTEC 5 7SD84/SIPROTEC 5 7SD86/SIPROTEC 5 7SD87/SIPROTEC 5 7SJ81/SIPROTEC 5 7SJ82/SIPROTEC 5 7SJ85/SIPROTEC 5 7SJ86/SIPROTEC 5 7SK82/SIPROTEC 5 7SK85/SIPROTEC 5 7SL82/SIPROTEC 5 7SL86/SIPROTEC 5 7SL87/SIPROTEC 5 7SS85/SIPROTEC 5 7ST85/SIPROTEC 5 7ST86/SIPROTEC 5 7SX82/SIPROTEC 5 7SX85/SIPROTEC 5 7UM85/SIPROTEC 5 7UT82/SIPROTEC 5 7UT85/SIPROTEC 5 7UT86/SIPROTEC 5 7UT87/SIPROTEC 5 7VE85/SIPROTEC 5 7VK87/SIPROTEC 5 7VU85/SIPROTEC 5 Communication Module ETH-BA-2EL/SIPROTEC 5 Communication Module ETH-BB-2FO/SIPROTEC 5 Communication Module ETH-BD-2FO/SIPROTEC 5 Compact 7SX800 9.40

Timelineinfo

03/23/2023 🔍
04/11/2023 +18 days 🔍
04/11/2023 +0 days 🔍
11/11/2025 +945 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-322980
Status: Confirmed

CVE: CVE-2023-28766 (🔍)
GCVE (CVE): GCVE-0-2023-28766
GCVE (VulDB): GCVE-100-225494

Entryinfo

Created: 04/11/2023 13:27
Updated: 11/11/2025 23:10
Changes: 04/11/2023 13:27 (50), 11/11/2025 23:10 (17)
Complete: 🔍
Cache ID: 216::103

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