9.8
CRITICAL
CVE-2023-20520
Microsoft IIS ASP Stack Buffer Overrun Vulnerability
Description

Improper access control settings in ASP Bootloader may allow an attacker to corrupt the return address causing a stack-based buffer overrun potentially leading to arbitrary code execution.

INFO

Published Date :

May 9, 2023, 7:15 p.m.

Last Modified :

May 22, 2023, 3:44 p.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-20520 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 Amd epyc_7h12_firmware
2 Amd epyc_7f72_firmware
3 Amd epyc_7f52_firmware
4 Amd epyc_7f32_firmware
5 Amd epyc_7742_firmware
6 Amd epyc_7702p_firmware
7 Amd epyc_7702_firmware
8 Amd epyc_7662_firmware
9 Amd epyc_7642_firmware
10 Amd epyc_7552_firmware
11 Amd epyc_7542_firmware
12 Amd epyc_7532_firmware
13 Amd epyc_7502p_firmware
14 Amd epyc_7502_firmware
15 Amd epyc_7452_firmware
16 Amd epyc_7402_firmware
17 Amd epyc_7402p_firmware
18 Amd epyc_7352_firmware
19 Amd epyc_7302p_firmware
20 Amd epyc_7302_firmware
21 Amd epyc_7282_firmware
22 Amd epyc_7272_firmware
23 Amd epyc_7262_firmware
24 Amd epyc_7252_firmware
25 Amd epyc_7232p_firmware
26 Amd epyc_72f3_firmware
27 Amd epyc_7313_firmware
28 Amd epyc_7313p_firmware
29 Amd epyc_7343_firmware
30 Amd epyc_7373x_firmware
31 Amd epyc_73f3_firmware
32 Amd epyc_7413_firmware
33 Amd epyc_7443_firmware
34 Amd epyc_7443p_firmware
35 Amd epyc_7453_firmware
36 Amd epyc_74f3_firmware
37 Amd epyc_7513_firmware
38 Amd epyc_7543_firmware
39 Amd epyc_7543p_firmware
40 Amd epyc_7573x_firmware
41 Amd epyc_75f3_firmware
42 Amd epyc_7643_firmware
43 Amd epyc_7663_firmware
44 Amd epyc_7713_firmware
45 Amd epyc_7713p_firmware
46 Amd epyc_7763_firmware
47 Amd epyc_7773x_firmware
48 Amd epyc_7251_firmware
49 Amd epyc_7261_firmware
50 Amd epyc_7281_firmware
51 Amd epyc_7301_firmware
52 Amd epyc_7351_firmware
53 Amd epyc_7371_firmware
54 Amd epyc_7401_firmware
55 Amd epyc_7401p_firmware
56 Amd epyc_7451_firmware
57 Amd epyc_7501_firmware
58 Amd epyc_7551_firmware
59 Amd epyc_7551p_firmware
60 Amd epyc_7601_firmware
61 Amd epyc_7351p_firmware
62 Amd epyc_7473x_firmware
63 Amd epyc_7571_firmware
: Total Affected Vendor : 1 | Products : 63
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-2023-20520.

URL Resource
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001 Vendor Advisory

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).

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

The following list is the news that have been mention CVE-2023-20520 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-20520 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 [email protected]

    May. 14, 2024

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

    May. 22, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001 No Types Assigned https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001 Vendor Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_72f3_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_72f3:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7313_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7313:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7313p_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7313p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7343_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7343:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7373x_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7373x:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_73f3_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_73f3:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7413_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7413:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7443_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7443:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7443p_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7443p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7453_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7453:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7473x_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7473x:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_74f3_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_74f3:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7513_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7513:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7543_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7543:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7543p_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7543p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7573x_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7573x:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_75f3_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_75f3:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7643_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7643:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7663_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7663:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7713_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7713:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7713p_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7713p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7763_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7763:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7773x_firmware:milanpi_1.0.0.5:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7773x:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7232p_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7232p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7252_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7252:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7262_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7262:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7272_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7272:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7282_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7282:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7302_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7302:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7302p_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7302p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7352_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7352:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7402_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7402:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7402p_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7402p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7452_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7452:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7502_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7502:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7502p_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7502p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7532_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7532:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7542_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7542:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7552_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7552:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7642_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7642:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7662_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7662:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7702_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7702:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7702p_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7702p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7742_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7742:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7f32_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7f32:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7f52_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7f52:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7f72_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7f72:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7h12_firmware:romepi_1.0.0.d:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7h12:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7251_firmware:naplespi_1.0.0.h:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7251:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7261_firmware:naplespi_1.0.0.h:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7261:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7281_firmware:naplespi_1.0.0.h:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7281:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7301_firmware:naplespi_1.0.0.h:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7301:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7351_firmware:naplespi_1.0.0.h:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7351:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7351p_firmware:naplespi_1.0.0.h:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7351p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7371_firmware:naplespi_1.0.0.h:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7371:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7401_firmware:naplespi_1.0.0.h:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7401:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7401p_firmware:naplespi_1.0.0.h:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7401p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7451_firmware:naplespi_1.0.0.h:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7451:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7501_firmware:naplespi_1.0.0.h:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7501:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7551_firmware:naplespi_1.0.0.h:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7551:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7551p_firmware:naplespi_1.0.0.h:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7551p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7571_firmware:naplespi_1.0.0.h:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7571:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:amd:epyc_7601_firmware:naplespi_1.0.0.h:*:*:*:*:*:*:* OR cpe:2.3:h:amd:epyc_7601:-:*:*:*:*:*:*:*
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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-20520 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-2023-20520 weaknesses.

Exploit Prediction

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

0.33 }} 0.04%

score

0.71581

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: