Siemens SIPLUS NET CP 1543-1 memory leak

CVSS Meta Temp Score
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CTI Interest Score
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7.5$5k-$25k0.00

A vulnerability has been found in Siemens SIMATIC CP 1242-7 V2, SIMATIC CP 1243-1, SIMATIC CP 1243-1 DNP3, SIMATIC CP 1243-1 IEC, SIMATIC CP 1243-7 LTE, SIMATIC CP 1243-8 IRC, SIMATIC CP 1543-1, SINAMICS S210 and SIPLUS NET CP 1543-1 (SCADA Software) and classified as critical. This vulnerability affects some unknown processing. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. CVE summarizes:

A vulnerability has been identified in SIMATIC CP 1242-7 V2 (incl. SIPLUS variants) (All versions), SIMATIC CP 1243-1 (incl. SIPLUS variants) (All versions), SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants) (All versions), SIMATIC CP 1243-1 IEC (incl. SIPLUS variants) (All versions), SIMATIC CP 1243-7 LTE (All versions), SIMATIC CP 1243-8 IRC (All versions), SIMATIC CP 1543-1 (All versions), SINAMICS S210 (6SL5...) (All versions >= V6.1 < V6.1 HF2), SIPLUS NET CP 1543-1 (All versions). The webserver implementation of the affected products does not correctly release allocated memory after it has been used. An attacker with network access could use this vulnerability to cause a denial-of-service condition in the webserver of the affected product.

The weakness was published 12/12/2023 as ssa-693975. The advisory is shared for download at cert-portal.siemens.com. This vulnerability was named CVE-2023-38380 since 07/17/2023. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 12/12/2023). The MITRE ATT&CK project declares the attack technique as T1499.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔒
VulDB CVSS-BT Score: 🔒
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

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

CVSSv2info

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VulDB Base Score: 🔒
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VulDB Reliability: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/17/2023 CVE reserved
12/12/2023 +148 days Advisory disclosed
12/12/2023 +0 days VulDB entry created
12/12/2023 +0 days VulDB entry last update

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-693975
Status: Confirmed

CVE: CVE-2023-38380 (🔒)

Entryinfo

Created: 12/12/2023 13:26
Changes: 12/12/2023 13:26 (48)
Complete: 🔍

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