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Vulnerability Details : CVE-2021-22898

curl 7.7 through 7.76.1 suffers from an information disclosure when the `-t` command line option, known as `CURLOPT_TELNETOPTIONS` in libcurl, is used to send variable=content pairs to TELNET servers. Due to a flaw in the option parser for sending NEW_ENV variables, libcurl could be made to pass on uninitialized data from a stack based buffer to the server, resulting in potentially revealing sensitive internal information to the server using a clear-text network protocol.
Publish Date : 2021-06-11 Last Update Date : 2022-05-13
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- CVSS Scores & Vulnerability Types

CVSS Score
2.6
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 909

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2021:4511: curl security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20214511 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2021-22898

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
2 OS Fedoraproject Fedora 33 * * * Version Details Vulnerabilities
3 OS Fedoraproject Fedora 34 * * * Version Details Vulnerabilities
4 Application Haxx Curl * * * * Version Details Vulnerabilities
5 Application Oracle Communications Cloud Native Core Binding Support Function 1.11.0 * * * Version Details Vulnerabilities
6 Application Oracle Communications Cloud Native Core Network Function Cloud Native Environment 1.10.0 * * * Version Details Vulnerabilities
7 Application Oracle Communications Cloud Native Core Network Repository Function 1.15.0 * * * Version Details Vulnerabilities
8 Application Oracle Communications Cloud Native Core Network Repository Function 1.15.1 * * * Version Details Vulnerabilities
9 Application Oracle Communications Cloud Native Core Network Slice Selection Function 1.8.0 * * * Version Details Vulnerabilities
10 Application Oracle Communications Cloud Native Core Service Communication Proxy 1.15.0 * * * Version Details Vulnerabilities
11 Application Oracle Essbase * * * * Version Details Vulnerabilities
12 Application Oracle Mysql Server * * * * Version Details Vulnerabilities
13 Application Siemens Sinec Infrastructure Network Services * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 1
Fedoraproject Fedora 2
Haxx Curl 1
Oracle Communications Cloud Native Core Binding Support Function 1
Oracle Communications Cloud Native Core Network Function Cloud Native Environment 1
Oracle Communications Cloud Native Core Network Repository Function 2
Oracle Communications Cloud Native Core Network Slice Selection Function 1
Oracle Communications Cloud Native Core Service Communication Proxy 1
Oracle Essbase 1
Oracle Mysql Server 1
Siemens Sinec Infrastructure Network Services 1

- References For CVE-2021-22898

https://www.oracle.com//security-alerts/cpujul2021.html
N/A N/A
https://github.com/curl/curl/commit/39ce47f219b09c380b81f89fe54ac586c8db6bde
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpujan2022.html
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf CONFIRM
https://curl.se/docs/CVE-2021-22898.html
https://lists.apache.org/thread.html/[email protected]%3Cissues.guacamole.apache.org%3E
MLIST [guacamole-issues] 20210618 [jira] [Created] (GUACAMOLE-1368) Latest docker image fails security scans.
https://lists.fedoraproject.org/archives/list/[email protected]/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/
FEDORA FEDORA-2021-5d21b90a30
https://lists.debian.org/debian-lts-announce/2021/08/msg00017.html
MLIST [debian-lts-announce] 20210813 [SECURITY] [DLA 2734-1] curl security update
https://lists.fedoraproject.org/archives/list/[email protected]/message/POOC3UV7V6L4CJ5KA2PTWTNUV5Y72T3Q/
FEDORA FEDORA-2021-83fdddca0f
http://www.openwall.com/lists/oss-security/2021/07/21/4
MLIST [oss-security] 20210721 [SECURITY ADVISORY] curl: TELNET stack contents disclosure again
https://hackerone.com/reports/1176461

- Metasploit Modules Related To CVE-2021-22898

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


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