Apache 2.4.x < 2.4.27 Multiple Vulnerabilities

critical Web App Scanning Plugin ID 98912

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Synopsis

Apache 2.4.x < 2.4.27 Multiple Vulnerabilities

Description

According to its banner, the version of Apache running on the remote host is 2.4.x prior to 2.4.27. It is, therefore, affected by the following vulnerabilities :

- A denial of service vulnerability exists in httpd due to a failure to initialize or reset the value placeholder in [Proxy-]Authorization headers of type 'Digest' before or between successive key=value assignments by mod_auth_digest. An unauthenticated, remote attacker can exploit this, by providing an initial key with no '=' assignment, to disclose sensitive information or cause a denial of service condition. (CVE-2017-9788)

- A read-after-free error exists in httpd that is triggered when closing a large number of connections. An unauthenticated, remote attacker can exploit this to have an unspecified impact. (CVE-2017-9789)

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Apache version 2.4.27 or later.

See Also

https://archive.apache.org/dist/httpd/CHANGES_2.4.27

https://httpd.apache.org/security/vulnerabilities_24.html#2.4.27

Plugin Details

Severity: Critical

ID: 98912

Type: remote

Family: Component Vulnerability

Published: 1/9/2019

Updated: 3/14/2023

Scan Template: api, basic, full, pci, scan

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P

CVSS Score Source: CVE-2017-9788

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS Score Source: CVE-2017-9788

Vulnerability Information

CPE: cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*

Exploit Ease: No known exploits are available

Patch Publication Date: 7/13/2017

Vulnerability Publication Date: 7/13/2017

Reference Information

CVE: CVE-2017-9788, CVE-2017-9789

BID: 99569, 99568

CWE: 20, 200, 416, 456

OWASP: 2010-A4, 2010-A6, 2013-A4, 2013-A5, 2013-A9, 2017-A5, 2017-A6, 2017-A9, 2021-A1, 2021-A3, 2021-A6

WASC: Improper Input Handling, Information Leakage

CAPEC: 10, 101, 104, 108, 109, 110, 116, 120, 13, 135, 136, 14, 153, 169, 182, 209, 22, 224, 23, 230, 231, 24, 250, 261, 267, 28, 285, 287, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 3, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 31, 310, 312, 313, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327, 328, 329, 330, 42, 43, 45, 46, 47, 472, 473, 497, 508, 52, 53, 573, 574, 575, 576, 577, 588, 59, 60, 616, 63, 64, 643, 646, 651, 67, 7, 71, 72, 73, 78, 79, 8, 80, 81, 83, 85, 88, 9

DISA STIG: APSC-DV-000460, APSC-DV-002560, APSC-DV-002590, APSC-DV-002630

HIPAA: 164.306(a)(1), 164.306(a)(2)

ISO: 27001-A.14.2.5

NIST: sp800_53-CM-6b, sp800_53-SI-10, sp800_53-SI-15, sp800_53-SI-16

OWASP API: 2019-API7, 2023-API8

OWASP ASVS: 4.0.2-14.2.1, 4.0.2-5.1.3, 4.0.2-8.3.4

PCI-DSS: 3.2-6.2, 3.2-6.5, 3.2-6.5.2, 3.2-6.5.8