IBM QRadar SIEM up to 7.3.3 Patch 8/7.4.3 GA XML Data xml external entity reference
|CVSS Meta Temp Score|
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|Current Exploit Price (≈)|
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|CTI Interest Score|
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A vulnerability has been found in IBM QRadar SIEM up to 7.3.3 Patch 8/7.4.3 GA (Log Management Software) and classified as critical. Affected by this vulnerability is an unknown function of the component XML Data Handler. The manipulation with an unknown input leads to a xml external entity vulnerability. The CWE definition for the vulnerability is CWE-611. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
IBM Qradar SIEM 7.3.0 to 7.3.3 Patch 8 and 7.4.0 to 7.4.3 GA is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 196073.
The weakness was published 07/27/2021. The advisory is shared at ibm.com. This vulnerability is known as CVE-2021-20399 since 12/17/2020. The exploitation appears to be easy. The attack can be launched remotely. The successful exploitation requires a single authentication. 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 08/05/2021). It is expected to see the exploit prices for this product increasing in the near future.
Upgrading eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at X-Force (196073).
CVSSv3VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.5
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 9.1
NVD Vector: 🔒
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
NVD Base Score: 🔒
ExploitingClass: XML External Entity
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
Threat IntelligenceInterest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍
0-Day Time: 🔒
Timeline12/17/2020 CVE assigned
07/27/2021 +221 days Advisory disclosed
07/27/2021 +0 days VulDB entry created
08/05/2021 +9 days VulDB last update
CVE: CVE-2021-20399 (🔒)
EntryCreated: 07/27/2021 07:12 PM
Updated: 08/05/2021 02:26 PM
Changes: (19) vulnerability_cvss2_nvd_basescore vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss3_nvd_basescore vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a source_cve_cna
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