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CNVD-2021-03037

Vulnerability from cnvd - Published: 2021-01-14

Title

Bitdefender Hypervisor Introspection代码执行漏洞

Description

Bidefender Hypervisor Introspection（HVI）是罗马尼亚Bidefender公司的一款处于Hypervisor层利用Xen和KVM虚拟机管理程序中的虚拟机自检API来检查运行中的虚拟机内存安全的软件。该软件通过虚拟化内存管理单元（MMU）的扩展页表（EPT）级别来阻止异常内存内的代码执行，通过应用安全逻辑，HVI搜索攻击技术，例如缓冲区溢出，堆喷射和代码注入，以在攻击者获得目标系统的立足点之前检测并阻止恶意活动。 Bitdefender Hypervisor Introspection 1.132.2之前版本存在代码执行漏洞，该漏洞源于IntPeParseUnwindData()中的编译器优化删除或修改安全关键代码漏洞会导致对同一指针的多次解引用。这可能导致任意代码执行。目前没有详细漏洞细节提供。

Severity

中

Patch Name

Bitdefender Hypervisor Introspection代码执行漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新：https://www.bitdefender.com/support/security-advisories/compiler-optimization-removal-modification-security-critical-code-vulnerability-bitdefender-hypervisor-introspection-va-9339/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-15294

Impacted products

Name
Bitdefender Bitdefender Hypervisor Introspection <1.132.2

Show details on source website

JSON

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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-03037",
  "openTime": "2021-01-14",
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}

CVE-2020-15294 (GCVE-0-2020-15294)

Vulnerability from cvelistv5 – Published: 2020-12-17 16:50 – Updated: 2024-09-16 19:40

Title

Compiler Optimization Removal or Modification of Security-Critical Code vulnerability in Bitdefender Hypervisor Introspection (VA-9339)

Summary

Compiler Optimization Removal or Modification of Security-critical Code vulnerability in IntPeParseUnwindData() results in multiple dereferences to the same pointer. If the pointer is located in memory-mapped from the guest space, this may cause a race-condition where the generated code would dereference the same address twice, thus obtaining different values, which may lead to arbitrary code execution. This issue affects: Bitdefender Hypervisor Introspection versions prior to 1.132.2.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-733 - Compiler Optimization Removal or Modification of Security-critical Code

Assigner

Bitdefender mitre root

References

1 reference

URL	Tags
https://www.bitdefender.com/support/security-advi…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Bitdefender	Hypervisor Introspection	Affected: unspecified , < 1.132.2 (custom)

Date Public

2020-12-17 00:00

Credits

Ilja Van Sprundel from IOActive

Show details on NVD website

JSON

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            "url": "https://www.bitdefender.com/support/security-advisories/compiler-optimization-removal-modification-security-critical-code-vulnerability-bitdefender-hypervisor-introspection-va-9339/"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.