IBM HTTP Server (powered by Apache) for IBM i is vulnerable to bypass security restrictions due to failure to send headers (CVE-2022-31813), read unintended memory due to large inputs to ap_rwrite() function (CVE-2022-28614), and read buffer beyond bound due to large input to ap_strcmp_match() (CVE-2022-28615). Each of these vulnerabilities are described in the vulnerability details section. IBM i has addressed the CVEs by providing fixes to the Apache HTTP Server implementation as described in the remediation/fixes section.
CVEID:CVE-2022-28615
**DESCRIPTION:**Apache HTTP Server could allow a remote attacker to obtain sensitive information, caused by a read beyond bounds in ap_strcmp_match() when provided with an extremely large input buffer. An attacker could exploit this vulnerability to crash or disclose information.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/228340 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)
CVEID:CVE-2022-28614
**DESCRIPTION:**Apache HTTP Server could allow a remote attacker to obtain sensitive information, caused by an error in the ap_rwrite() function. By reflecting very large input using ap_rwrite() or ap_rputs(), such as with mod_luas r:puts() function, an attacker could exploit this vulnerability to read unintended memory.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/228342 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
CVEID:CVE-2022-31813
**DESCRIPTION:*Apache HTTP Server could allow a remote attacker to bypass security restrictions, caused by the failure to send the X-Forwarded- headers to the origin server based on client side Connection header hop-by-hop mechanism. An attacker could exploit this vulnerability to bypass IP based authentication on the origin server/application.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/228337 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
Affected Product(s) | Version(s) |
---|---|
IBM i | 7.5 |
IBM i | 7.4 |
IBM i | 7.3 |
IBM i | 7.2 |
The issue can be fixed by applying a PTF to IBM i. IBM i releases 7.5, 7.4, 7.3, and 7.2 will be fixed.
The IBM i PTF numbers contain the fix for the vulnerabilities.
IBM i Release| 5770-DG1
PTF Number| PTF Download Link
—|—|—
7.5| SI80337| SI80337
7.4| SI80353| SI80353
7.3| SI80354| SI80354
7.2| SI80355| SI80355
<https://www.ibm.com/support/fixcentral>
_Important note: _IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.
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