CVE-2021-3694
LedgerSMB Cross-Site Scripting (XSS) Vulnerability
Description
LedgerSMB does not sufficiently HTML-encode error messages sent to the browser. By sending a specially crafted URL to an authenticated user, this flaw can be abused for remote code execution and information disclosure.
INFO
Published Date :
Aug. 23, 2021, 1:15 p.m.
Last Modified :
Nov. 21, 2024, 6:22 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update the LedgerSMB package.
- For Debian systems, upgrade to version 1.6.9+ds-2+deb11u2 or later.
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-2021-3694.
| URL | Resource |
|---|---|
| https://github.com/ledgersmb/ledgersmb/commit/98fa476d46a4a7e5e9492ed69b4fa190be5547fc | Patch Third Party Advisory |
| https://huntr.dev/bounties/ef7f4cf7-3a81-4516-b261-f5b6ac21430c | Third Party Advisory |
| https://ledgersmb.org/cve-2021-3694-cross-site-scripting | Vendor Advisory |
| https://www.debian.org/security/2021/dsa-4962 | Third Party Advisory |
| https://github.com/ledgersmb/ledgersmb/commit/98fa476d46a4a7e5e9492ed69b4fa190be5547fc | Patch Third Party Advisory |
| https://huntr.dev/bounties/ef7f4cf7-3a81-4516-b261-f5b6ac21430c | Third Party Advisory |
| https://ledgersmb.org/cve-2021-3694-cross-site-scripting | Vendor Advisory |
| https://www.debian.org/security/2021/dsa-4962 | Third Party 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-2021-3694 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-2021-3694
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-3694 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3694 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://github.com/ledgersmb/ledgersmb/commit/98fa476d46a4a7e5e9492ed69b4fa190be5547fc Added Reference https://huntr.dev/bounties/ef7f4cf7-3a81-4516-b261-f5b6ac21430c Added Reference https://ledgersmb.org/cve-2021-3694-cross-site-scripting Added Reference https://www.debian.org/security/2021/dsa-4962 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Aug. 27, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H Changed Reference Type https://github.com/ledgersmb/ledgersmb/commit/98fa476d46a4a7e5e9492ed69b4fa190be5547fc No Types Assigned https://github.com/ledgersmb/ledgersmb/commit/98fa476d46a4a7e5e9492ed69b4fa190be5547fc Patch, Third Party Advisory Changed Reference Type https://huntr.dev/bounties/ef7f4cf7-3a81-4516-b261-f5b6ac21430c No Types Assigned https://huntr.dev/bounties/ef7f4cf7-3a81-4516-b261-f5b6ac21430c Third Party Advisory Changed Reference Type https://ledgersmb.org/cve-2021-3694-cross-site-scripting No Types Assigned https://ledgersmb.org/cve-2021-3694-cross-site-scripting Vendor Advisory Changed Reference Type https://www.debian.org/security/2021/dsa-4962 No Types Assigned https://www.debian.org/security/2021/dsa-4962 Third Party Advisory Added CWE NIST CWE-79 Added CPE Configuration OR *cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:* versions from (including) 1.1.0 up to (including) 1.1.12 *cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:* versions from (including) 1.2.0 up to (including) 1.2.26 *cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:* versions from (including) 1.3.0 up to (including) 1.3.47 *cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:* versions from (including) 1.4.0 up to (including) 1.4.42 *cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:* versions from (including) 1.5.0 up to (including) 1.5.30 *cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:* versions from (including) 1.6.0 up to (including) 1.6.33 *cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:* versions from (including) 1.7.0 up to (including) 1.7.32 *cpe:2.3:a:ledgersmb:ledgersmb:*:*:*:*:*:*:*:* versions from (including) 1.8.0 up to (including) 1.8.17 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Aug. 24, 2021
Action Type Old Value New Value Added Reference https://www.debian.org/security/2021/dsa-4962 [No Types Assigned]
Vulnerability Scoring Details
Base CVSS Score: 9.6
Base CVSS Score: 6.8
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.62 }} -0.22%
score
0.69264
percentile