Siemens CP-8031 MASTER MODULE/CP-8050 MASTER MODULE CPCI85 Web Server /sicweb-ajax/tmproot/ path traversal

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Siemens CP-8031 MASTER MODULE and CP-8050 MASTER MODULE CPCI85. It has been classified as critical. This vulnerability affects unknown code of the file /sicweb-ajax/tmproot/ of the component Web Server. The manipulation leads to path traversal. This vulnerability is listed as CVE-2023-42796. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Siemens CP-8031 MASTER MODULE and CP-8050 MASTER MODULE CPCI85 and classified as critical. This issue affects an unknown code block of the file /sicweb-ajax/tmproot/ of the component Web Server. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality. The summary by CVE is:

A vulnerability has been identified in CP-8031 MASTER MODULE (All versions < CPCI85 V05.11), CP-8050 MASTER MODULE (All versions < CPCI85 V05.11). The web server of affected devices fails to properly sanitize user input for the /sicweb-ajax/tmproot/ endpoint. This could allow an authenticated remote attacker to traverse directories on the system and download arbitrary files. By exploring active session IDs, the vulnerability could potentially be leveraged to escalate privileges to the administrator role.

The weakness was presented 10/10/2023 as ssa-770890. The advisory is shared at cert-portal.siemens.com. The identification of this vulnerability is CVE-2023-42796 since 09/14/2023. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version CPCI85 V05.11 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

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: Path traversal
CWE: CWE-22
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: CP-8031 MASTER MODULE/CP-8050 MASTER MODULE CPCI85 V05.11

Timelineinfo

09/14/2023 🔍
10/10/2023 +26 days 🔍
10/10/2023 +0 days 🔍
10/28/2023 +18 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-770890
Status: Confirmed

CVE: CVE-2023-42796 (🔍)
GCVE (CVE): GCVE-0-2023-42796
GCVE (VulDB): GCVE-100-241673

Entryinfo

Created: 10/10/2023 13:43
Updated: 10/28/2023 13:54
Changes: 10/10/2023 13:43 (52), 10/28/2023 13:54 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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