HAProxy up to 2.0.9 HTTP/2 injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in HAProxy up to 2.0.9. Impacted is an unknown function of the component HTTP2 Handler. Performing a manipulation results in injection. This vulnerability is identified as CVE-2019-19330. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in HAProxy up to 2.0.9 (Firewall Software). It has been classified as very critical. This affects some unknown processing of the component HTTP2 Handler. The manipulation with an unknown input leads to a injection vulnerability. CWE is classifying the issue as CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The HTTP/2 implementation in HAProxy before 2.0.10 mishandles headers, as demonstrated by carriage return (CR, ASCII 0xd), line feed (LF, ASCII 0xa), and the zero character (NUL, ASCII 0x0), aka Intermediary Encapsulation Attacks.

The weakness was released 11/27/2019. This vulnerability is uniquely identified as CVE-2019-19330 since 11/27/2019. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/05/2024). MITRE ATT&CK project uses the attack technique T1055 for this issue.

Upgrading to version 2.0.10 eliminates this vulnerability.

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

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Injection
CWE: CWE-74 / CWE-707 / CWE-20
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: HAProxy 2.0.10
Patch: ac198b92d461515551b95daae20954b3053ce87e

Timelineinfo

11/27/2019 🔍
11/27/2019 +0 days 🔍
11/28/2019 +1 days 🔍
03/05/2024 +1559 days 🔍

Sourcesinfo

Advisory: USN-4212-1
Status: Not defined

CVE: CVE-2019-19330 (🔍)
GCVE (CVE): GCVE-0-2019-19330
GCVE (VulDB): GCVE-100-146481

Entryinfo

Created: 11/28/2019 08:19
Updated: 03/05/2024 07:15
Changes: 11/28/2019 08:19 (36), 11/28/2019 08:24 (18), 03/05/2024 07:15 (7)
Complete: 🔍
Cache ID: 216::103

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