HAProxy up to 1.8.9 Authorization Header proto_http.c check_request_for_cacheability information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability was found in HAProxy up to 1.8.9 and classified as problematic. This vulnerability affects the function check_request_for_cacheability of the file proto_http.c of the component Authorization Header Handler. Such manipulation leads to information disclosure. This vulnerability is referenced as CVE-2018-11469. It is possible to launch the attack remotely. No exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in HAProxy up to 1.8.9 (Firewall Software) and classified as problematic. Affected by this issue is the function check_request_for_cacheability of the file proto_http.c of the component Authorization Header Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

Incorrect caching of responses to requests including an Authorization header in HAProxy 1.8.0 through 1.8.9 (if cache enabled) allows attackers to achieve information disclosure via an unauthenticated remote request, related to the proto_http.c check_request_for_cacheability function.

The bug was discovered 05/23/2018. The weakness was published 05/25/2018 as confirmed git commit (GIT Repository). The advisory is shared for download at git.haproxy.org. This vulnerability is handled as CVE-2018-11469 since 05/25/2018. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 110262 (Ubuntu 18.04 LTS : haproxy vulnerability (USN-3663-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171847 (OpenSUSE Security Update for haproxy (openSUSE-SU-2018:3324-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.haproxy.org. A possible mitigation has been published 5 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (110262) and SecurityFocus (BID 104347†). Similar entry is available at VDB-124333. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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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Nessus ID: 110262
Nessus Name: Ubuntu 18.04 LTS : haproxy vulnerability (USN-3663-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: 17514045e5d934dede62116216c1b016fe23dd06

Timelineinfo

05/23/2018 🔍
05/25/2018 +1 days 🔍
05/25/2018 +0 days 🔍
05/25/2018 +0 days 🔍
05/25/2018 +0 days 🔍
05/25/2018 +0 days 🔍
05/30/2018 +5 days 🔍
05/31/2018 +1 days 🔍
03/17/2023 +1751 days 🔍

Sourcesinfo

Advisory: USN-3663-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-11469 (🔍)
GCVE (CVE): GCVE-0-2018-11469
GCVE (VulDB): GCVE-100-118220
SecurityFocus: 104347 - HAProxy CVE-2018-11469 Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 05/25/2018 23:52
Updated: 03/17/2023 09:16
Changes: 05/25/2018 23:52 (78), 02/08/2020 20:38 (5), 03/17/2023 09:12 (5), 03/17/2023 09:16 (1)
Complete: 🔍
Cache ID: 216::103

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