BDU:2024-02718
Scores
EPSS
Percentile: 0.0%
CVSS
CVSS Score: 5.3/10
All CVSS Scores
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
Low (L)
Describes the conditions beyond the attacker's control
Privileges Required
None (N)
Describes the level of privileges an attacker must possess
User Interaction
None (N)
Captures the requirement for a human user participation
Scope
Unchanged (U)
Determines if a successful attack impacts components beyond the vulnerable component
Confidentiality Impact
None (N)
Measures the impact to the confidentiality of information
Integrity Impact
None (N)
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
Low (L)
Measures the impact to the availability of the impacted component
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Network (N)
Describes how the vulnerability is exploited
Attack Complexity
Low (L)
Describes the conditions beyond the attacker's control
Authentication
None (N)
Describes the level of privileges an attacker must possess
Confidentiality Impact
None (N)
Measures the impact to the confidentiality of information
Integrity Impact
None (N)
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
Partial
Measures the impact to the availability of the impacted component
Description
Уязвимость кодека nghttp2 прокси-сервера Envoy (в части реализации протокола HTTP/2) связана с отправкой неограниченного количества фреймов CONTINUATION при превышении ограничений размера заголовков в результате отсутствия флага END_HEADERS. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, вызвать отказ в обслуживании
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Sources
Related Vulnerabilities
Reference Links
Recommendations
Source: bdu
Использование рекомендаций:
https://github.com/envoyproxy/envoy/releases/tag/v1.29.3
https://github.com/envoyproxy/envoy/releases/tag/v1.28.2
https://github.com/envoyproxy/envoy/releases/tag/v1.27.4
https://github.com/envoyproxy/envoy/releases/tag/v1.26.8
Компенсирующие меры:
- использование систем обнаружения и предотвращения вторжений, позволяющих предотвратить реализацию атаки CONTINUATION Floud;
- ограничить использование протокола HTTP/2 (перейти на HTTP /1.1).
Vulnerable Software (4)
Type: Configuration
Vendor: сообщество свободного программного обеспечения
Product: envoy
Operating System: * *
{ "version_end_excluding": "1.27.4", "version_start_including": "1.27.0"}
Source: bdu
Type: Configuration
Vendor: сообщество свободного программного обеспечения
Product: envoy
Operating System: * *
{ "version_end_excluding": "1.28.2", "version_start_including": "1.28.0"}
Source: bdu
Type: Configuration
Vendor: сообщество свободного программного обеспечения
Product: envoy
Operating System: * *
{ "version_end_including": "1.29.2", "version_start_including": "1.29.0"}
Source: bdu
Type: Configuration
Vendor: сообщество свободного программного обеспечения
Product: envoy
Operating System: * *
{ "version_end_excluding": "1.26.8"}
Source: bdu