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Vulnerability Details : CVE-2022-24884

ecdsautils is a tiny collection of programs used for ECDSA (keygen, sign, verify). `ecdsa_verify_[prepare_]legacy()` does not check whether the signature values `r` and `s` are non-zero. A signature consisting only of zeroes is always considered valid, making it trivial to forge signatures. Requiring multiple signatures from different public keys does not mitigate the issue: `ecdsa_verify_list_legacy()` will accept an arbitrary number of such forged signatures. Both the `ecdsautil verify` CLI command and the libecdsautil library are affected. The issue has been fixed in ecdsautils 0.4.1. All older versions of ecdsautils (including versions before the split into a library and a CLI utility) are vulnerable.
Publish Date : 2022-05-06 Last Update Date : 2022-05-16
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 347

- Products Affected By CVE-2022-24884

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
2 OS Debian Debian Linux 10.0 * * * Version Details Vulnerabilities
3 OS Debian Debian Linux 11.0 * * * Version Details Vulnerabilities
4 Application Ecdsautils Project Ecdsautils * * * * Version Details Vulnerabilities
5 OS Fedoraproject Fedora 34 * * * Version Details Vulnerabilities
6 OS Fedoraproject Fedora 35 * * * Version Details Vulnerabilities
7 OS Fedoraproject Fedora 36 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 3
Ecdsautils Project Ecdsautils 1
Fedoraproject Fedora 3

- References For CVE-2022-24884

https://www.debian.org/security/2022/dsa-5132
DEBIAN DSA-5132
https://lists.fedoraproject.org/archives/list/[email protected]/message/G2JT57AAFIEL7JDO2ZBV25JKYME5NU54/
FEDORA FEDORA-2022-111177a5ac
https://github.com/freifunk-gluon/ecdsautils/commit/39b6d0a77414fd41614953a0e185c4eefa2f88ad
https://lists.fedoraproject.org/archives/list/[email protected]/message/4AKQH5WCBMJA3ODCSNERY6HVX4BX3ITG/
FEDORA FEDORA-2022-bf58612696
https://lists.debian.org/debian-lts-announce/2022/05/msg00007.html
MLIST [debian-lts-announce] 20220507 [SECURITY] [DLA 2997-1] ecdsautils security update
https://github.com/freifunk-gluon/ecdsautils/commit/1d4b091abdf15ad7b2312535b5b95ad70f6dbd08
https://lists.fedoraproject.org/archives/list/[email protected]/message/L7UBR3M4U3LA46BHXYSH7EN5GDG44GK7/
FEDORA FEDORA-2022-7704d5e885
https://github.com/freifunk-gluon/ecdsautils/security/advisories/GHSA-qhcg-9ffp-78pw CONFIRM

- Metasploit Modules Related To CVE-2022-24884

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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