Siemens OpenV2G 0.9.4 EXI Parser buffer overflow

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.5$5k-$25k0.00

Summaryinfo

A vulnerability was found in Siemens OpenV2G 0.9.4. It has been declared as critical. This affects an unknown part of the component EXI Parser. Such manipulation leads to buffer overflow. This vulnerability is traded as CVE-2022-27242. There is no exploit available.

Detailsinfo

A vulnerability was found in Siemens OpenV2G 0.9.4 and classified as critical. Affected by this issue is some unknown processing of the component EXI Parser. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability.

The weakness was shared 05/20/2022 as ssa-736385. The advisory is shared for download at cert-portal.siemens.com. This vulnerability is handled as CVE-2022-27242 since 03/18/2022. 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 05/20/2022).

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/18/2022 🔍
05/20/2022 +62 days 🔍
05/20/2022 +0 days 🔍
05/27/2022 +7 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-736385
Status: Confirmed

CVE: CVE-2022-27242 (🔍)
GCVE (CVE): GCVE-0-2022-27242
GCVE (VulDB): GCVE-100-200444

Entryinfo

Created: 05/20/2022 17:01
Updated: 05/27/2022 08:52
Changes: 05/20/2022 17:01 (38), 05/27/2022 08:52 (1)
Complete: 🔍
Cache ID: 216::103

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