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5.9
MEDIUM CVSS 3.1
CVE-2021-27620
SAP Internet Graphics Service Denial of Service (DoS) Vulnerability
Description

SAP Internet Graphics Service, versions - 7.20,7.20EXT,7.53,7.20_EX2,7.81, allows an unauthenticated attacker after retrieving an existing system state value can submit a malicious IGS request over a network which due to insufficient input validation in method Ups::AddPart() which will trigger an internal memory corruption error in the system causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.

INFO

Published Date :

June 9, 2021, 2:15 p.m.

Last Modified :

Nov. 21, 2024, 5:58 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2021-27620 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Sap netweaver_as_internet_graphics_server
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.0 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
Public PoC/Exploit Available at Github

CVE-2021-27620 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-27620.

URL Resource
https://launchpad.support.sap.com/#/notes/3021050 Permissions Required Vendor Advisory
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 Broken Link Vendor Advisory
https://launchpad.support.sap.com/#/notes/3021050 Permissions Required Vendor Advisory
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 Broken Link Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-27620 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-27620 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

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Onapsis/vulnerability_advisories

Onapsis Security Advisories. https://www.onapsis.com

Updated: 1 year, 6 months ago
10 stars 1 fork 1 watcher
Born at : March 17, 2021, 5:01 p.m. This repo has been linked 44 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-27620 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2021-27620 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://launchpad.support.sap.com/#/notes/3021050
    Added Reference https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Oct. 31, 2022

    Action Type Old Value New Value
    Changed Reference Type https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 Vendor Advisory https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 Broken Link, Vendor Advisory
  • CVE Modified by [email protected]

    Oct. 17, 2022

    Action Type Old Value New Value
    Removed Reference http://packetstormsecurity.com/files/164598/SAP-NetWeaver-ABAP-IGS-Memory-Corruption.html [Patch, Third Party Advisory, VDB Entry]
    Removed Reference http://seclists.org/fulldisclosure/2021/Oct/31 [Mailing List, Patch, Third Party Advisory]
    Removed CWE SAP SE CWE-20
    Added CWE SAP SE CWE-787
    Removed CWE Reason CWE-20 / More specific CWE option available
  • Reanalysis by [email protected]

    Oct. 07, 2022

    Action Type Old Value New Value
    Removed CWE NIST CWE-20
    Added CWE NIST CWE-787
  • Modified Analysis by [email protected]

    Nov. 04, 2021

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/164598/SAP-NetWeaver-ABAP-IGS-Memory-Corruption.html No Types Assigned http://packetstormsecurity.com/files/164598/SAP-NetWeaver-ABAP-IGS-Memory-Corruption.html Patch, Third Party Advisory, VDB Entry
    Changed Reference Type http://seclists.org/fulldisclosure/2021/Oct/31 No Types Assigned http://seclists.org/fulldisclosure/2021/Oct/31 Mailing List, Patch, Third Party Advisory
  • CVE Modified by [email protected]

    Oct. 22, 2021

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/164598/SAP-NetWeaver-ABAP-IGS-Memory-Corruption.html [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 22, 2021

    Action Type Old Value New Value
    Added Reference http://seclists.org/fulldisclosure/2021/Oct/31 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jun. 14, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://launchpad.support.sap.com/#/notes/3021050 No Types Assigned https://launchpad.support.sap.com/#/notes/3021050 Permissions Required, Vendor Advisory
    Changed Reference Type https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 No Types Assigned https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 Vendor Advisory
    Added CWE NIST CWE-20
    Added CPE Configuration OR *cpe:2.3:a:sap:netweaver_as_internet_graphics_server:7.20:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_internet_graphics_server:7.20ex2:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_internet_graphics_server:7.20ext:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_internet_graphics_server:7.53:*:*:*:*:*:*:* *cpe:2.3:a:sap:netweaver_as_internet_graphics_server:7.81:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5.9
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 5.9
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 4.3
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.51 }} -0.90%

score

0.63517

percentile