Vulnerability Name:

CVE-2021-27606 (CCN-203362)

Assigned:2021-06-08
Published:2021-06-08
Updated:2022-10-31
Summary:SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server), versions - KRNL32NUC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT,7.49, KRNL64UC - 8.04,7.22,7.22EXT,7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49,7.53,7.73, allows an unauthenticated attacker without specific knowledge of the system to send a specially crafted packet over a network which will trigger an internal error in the system due to improper input validation in method EncOAMParamStore() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-125
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-27606

Source: XF
Type: UNKNOWN
sap-cve202127606-dos(203362)

Source: CCN
Type: SAP Web site
SAP Support Note 3020209

Source: MISC
Type: Permissions Required, Vendor Advisory
https://launchpad.support.sap.com/#/notes/3020104

Source: CCN
Type: SAP Security Patch Day - June 2021
SAP Security Patch Day - June 2021

Source: MISC
Type: Broken Link, Vendor Advisory
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999

Vulnerable Configuration:Configuration 1:
  • cpe:/a:sap:netweaver_as_abap:krnl32nuc_7.22:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:krnl32nuc_7.22ext:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:krnl64nuc_7.22:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:krnl64nuc_7.22ext:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:krnl64nuc_7.49:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:krnl64uc_8.04:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:kernel_7.22:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:kernel_7.49:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:kernel_8.04:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:krnl64uc_7.22:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:krnl64uc_7.22ext:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:krnl64uc_7.49:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:krnl64uc_7.53:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:krnl64uc_7.73:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:kernel_7.53:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:kernel_7.73:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:kernel_7.77:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:kernel_7.81:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:kernel_7.82:*:*:*:*:*:*:*
  • OR cpe:/a:sap:netweaver_as_abap:kernel_7.83:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    sap netweaver as abap krnl32nuc_7.22
    sap netweaver as abap krnl32nuc_7.22ext
    sap netweaver as abap krnl64nuc_7.22
    sap netweaver as abap krnl64nuc_7.22ext
    sap netweaver as abap krnl64nuc_7.49
    sap netweaver as abap krnl64uc_8.04
    sap netweaver as abap kernel_7.22
    sap netweaver as abap kernel_7.49
    sap netweaver as abap kernel_8.04
    sap netweaver as abap krnl64uc_7.22
    sap netweaver as abap krnl64uc_7.22ext
    sap netweaver as abap krnl64uc_7.49
    sap netweaver as abap krnl64uc_7.53
    sap netweaver as abap krnl64uc_7.73
    sap netweaver as abap kernel_7.53
    sap netweaver as abap kernel_7.73
    sap netweaver as abap kernel_7.77
    sap netweaver as abap kernel_7.81
    sap netweaver as abap kernel_7.82
    sap netweaver as abap kernel_7.83