SAP NetWeaver AS ABAP Multiple Vulnerabilities (Oct 2021)

high Nessus Plugin ID 154141
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Synopsis

The remote SAP NetWeaver ABAP server is affected by multiple vulnerabilities.

Description

Multiple vulnerabilities may be present in SAP NetWeaver Application Server ABAP, including the following:

- SAP NetWeaver AS ABAP and ABAP Platform - versions 700, 701, 702, 730, 731, 740, 750, 751, 752, 753, 754, 755, 756, allows an attacker to prevent legitimate users from accessing a service, either by crashing or flooding the service. (CVE-2021-38181)

- There are multiple Denial-of Service vulnerabilities in SAP NetWeaver Application Server for ABAP and ABAP Platform - versions 740, 750, 751, 752, 753, 754, 755. An unauthorized attacker can use the public SICF service /sap/public/bc/abap to reduce the performance of SAP NetWeaver Application Server ABAP and ABAP Platform. (CVE-2021-40495)

- SAP Internet Communication framework (ICM) - versions 700, 701, 702, 730, 731, 740, 750, 751, 752, 753, 754, 755, 756, 785, allows an attacker with logon functionality, to exploit the authentication function by using POST and form field to repeat executions of the initial command by a GET request and exposing sensitive data. This vulnerability is normally exposed over the network and successful exploitation can lead to exposure of data like system details. (CVE-2021-40496)

- The software logistics system of SAP NetWeaver AS ABAP and ABAP Platform versions - 700, 701, 702, 710, 730, 731, 740, 750, 751, 752, 753, 754, 755, 756, enables a malicious user to transfer ABAP code artifacts or content, by-passing the established quality gates. By this vulnerability malicious code can reach quality and production, and can compromise the confidentiality, integrity, and availability of the system and its data. (CVE-2021-38178)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Apply the appropriate patch according to the vendor advisory.

See Also

https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=587169983

https://launchpad.support.sap.com/#/notes/3099011

https://launchpad.support.sap.com/#/notes/3080710

https://launchpad.support.sap.com/#/notes/3097887

https://launchpad.support.sap.com/#/notes/3087254

Plugin Details

Severity: High

ID: 154141

File Name: sap_netweaver_as_abap_oct_2021.nasl

Version: 1.3

Type: remote

Family: Web Servers

Published: 10/14/2021

Updated: 10/19/2021

Dependencies: sap_netweaver_as_web_detect.nbin

Configuration: Enable paranoid mode

Risk Information

CVSS Score Source: CVE-2021-38178

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:a:sap:netweaver_application_server:*:*:*:*:*:*:*:*

Required KB Items: Settings/ParanoidReport, installed_sw/SAP Netweaver Application Server (AS)

Exploit Ease: No known exploits are available

Patch Publication Date: 10/12/2021

Vulnerability Publication Date: 10/12/2021

Reference Information

CVE: CVE-2021-40495, CVE-2021-38181, CVE-2021-38178, CVE-2021-40496

IAVA: 2021-A-0462