IBM QRadar SIEM update for Apache HTTP Server
| Risk | Critical |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2021-44790 CVE-2021-34798 CVE-2021-39275 |
| CWE-ID | CWE-119 CWE-476 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
IBM Qradar SIEM Client/Desktop applications / Other client software |
| Vendor | IBM Corporation |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Buffer overflow
EUVDB-ID: #VU59056
Risk: Critical
CVSSv4.0: 8.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Red]
CVE-ID: CVE-2021-44790
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when parsing multipart content in mod_lua. A remote attacker can send a specially crafted HTTP request to the affected web server, trigger buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM Qradar SIEM: 7.3.0 Patch 1 - 7.5.0
CPE2.3- cpe:2.3:a:ibm_corporation:ibm_qradar_siem:7.3.3:*:*:*:*:*:*:*
- cpe:2.3:a:ibm_corporation:ibm_qradar_siem:7.4.3:Fix_Pack_4:*:*:*:*:*:*
- cpe:2.3:a:ibm_corporation:ibm_qradar_siem:7.5.0:*:*:*:*:*:*:*
https://www.ibm.com/blogs/psirt/security-bulletin-apache-http-server-as-used-by-ibm-qradar-siem-is-vulnerable-to-buffer-overflow-and-denial-of-service-cve-2021-44790-cve-2021-34798-cve-2021-39275/
https://www.ibm.com/support/pages/node/6560142
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
2) NULL pointer dereference
EUVDB-ID: #VU56681
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-34798
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error. A remote attacker can send a specially crafted HTTP request to the affected web server and perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM Qradar SIEM: 7.3.0 Patch 1 - 7.5.0
CPE2.3https://www.ibm.com/blogs/psirt/security-bulletin-apache-http-server-as-used-by-ibm-qradar-siem-is-vulnerable-to-buffer-overflow-and-denial-of-service-cve-2021-44790-cve-2021-34798-cve-2021-39275/
https://www.ibm.com/support/pages/node/6560142
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Buffer overflow
EUVDB-ID: #VU56679
Risk: Medium
CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-39275
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system or perform a denial of service attack.
The vulnerability exists due to a boundary error within the ap_escape_quotes() function. A remote attacker can send a specially crafted request to the web server, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system but requires that the Apache module passes untrusted data to the affected function.
According to vendor, No included modules pass untrusted data to these functions
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM Qradar SIEM: 7.3.0 Patch 1 - 7.5.0
CPE2.3https://www.ibm.com/blogs/psirt/security-bulletin-apache-http-server-as-used-by-ibm-qradar-siem-is-vulnerable-to-buffer-overflow-and-denial-of-service-cve-2021-44790-cve-2021-34798-cve-2021-39275/
https://www.ibm.com/support/pages/node/6560142
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
