Multiple vulnerabilities in IBM PowerSC
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 10 |
| CVE-ID | CVE-2022-27776 CVE-2022-27775 CVE-2022-27781 CVE-2022-27782 CVE-2022-27778 CVE-2022-27779 CVE-2022-30115 CVE-2022-27780 CVE-2022-27774 CVE-2022-22576 |
| CWE-ID | CWE-200 CWE-399 CWE-835 CWE-303 CWE-664 CWE-319 CWE-20 CWE-287 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
PowerSC Operating systems & Components / Operating system |
| Vendor | IBM Corporation |
Security Bulletin
This security bulletin contains information about 10 vulnerabilities.
1) Information disclosure
EUVDB-ID: #VU62644
Risk: Low
CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-27776
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to curl can leak authentication or cookie header data during HTTP redirects to the same host but another port number. When asked to send custom headers or cookies in its HTTP requests, curl sends that set of headers only to the host which name is used in the initial URL, so that redirects to other hosts will make curl send the data to those. However, due to a flawed check, curl wrongly also sends that same set of headers to the hosts that are identical to the first one but use a different port number or URL scheme.
The vulnerability exists due to an incomplete fix for #VU10224 (CVE-2018-1000007).
MitigationInstall update from vendor's website.
Vulnerable software versionsPowerSC: 1.3 - 2.1
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-curl-affect-powersc-2/
http://www.ibm.com/support/pages/node/6823211
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Resource management error
EUVDB-ID: #VU62643
Risk: Low
CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-27775
CWE-ID:
CWE-399 - Resource Management Errors
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to improper management of internal resources when handling IPv6 protocol. Due to errors in the logic, the config matching function did not take the IPv6 address zone id into account which could lead to libcurl reusing the wrong connection when one transfer uses a zone id and a subsequent transfer uses another (or no) zone id.
MitigationInstall update from vendor's website.
Vulnerable software versionsPowerSC: 1.3 - 2.1
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-curl-affect-powersc-2/
http://www.ibm.com/support/pages/node/6823211
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Infinite loop
EUVDB-ID: #VU63008
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-27781
CWE-ID:
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop when handling requests with the CURLOPT_CERTINFO option. A remote attacker can consume all available system resources and cause denial of service conditions.
MitigationInstall update from vendor's website.
Vulnerable software versionsPowerSC: 1.3 - 2.1
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-curl-affect-powersc-2/
http://www.ibm.com/support/pages/node/6823211
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Incorrect Implementation of Authentication Algorithm
EUVDB-ID: #VU63009
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-27782
CWE-ID:
CWE-303 - Incorrect Implementation of Authentication Algorithm
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to the way libcurl handles previously used connections in a connection pool for subsequent transfers. Several TLS and SSH settings were left out from the configuration match checks, resulting in erroneous matches for different resources. As a result, libcurl can send authentication string from one resource to another, exposing credentials to a third-party.
Install update from vendor's website.
Vulnerable software versionsPowerSC: 1.3 - 2.1
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-curl-affect-powersc-2/
http://www.ibm.com/support/pages/node/6823211
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
5) Improper control of a resource through its lifetime
EUVDB-ID: #VU63004
Risk: Low
CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-27778
CWE-ID:
CWE-664 - Improper control of a resource through its lifetime
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to delete files on the system.
The vulnerability exists in the curl command line tool when --no-clobber is used together with --remove-on-error. A remote attacker can trick the victim to connect to a malicious server and force the command line tool to remove unexpected files.
Install update from vendor's website.
Vulnerable software versionsPowerSC: 1.3 - 2.1
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-curl-affect-powersc-2/
http://www.ibm.com/support/pages/node/6823211
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
6) Information disclosure
EUVDB-ID: #VU63005
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-27779
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to libcurl wrongly allows HTTP cookies to be set for Top Level Domains (TLDs) if the host name is provided with a trailing dot. As a result, an attacker can create cookie files that are later sent to a different and unrelated site or domain.
MitigationInstall update from vendor's website.
Vulnerable software versionsPowerSC: 1.3 - 2.1
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-curl-affect-powersc-2/
http://www.ibm.com/support/pages/node/6823211
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
7) Cleartext transmission of sensitive information
EUVDB-ID: #VU63011
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-30115
CWE-ID:
CWE-319 - Cleartext Transmission of Sensitive Information
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to an error in HSTS implementation that can allow curl to continue using HTTP protocol instead of HTTPS if the host name in the given URL used a trailing dot while not using one when it built the HSTS cache. A remote attacker with ability to intercept traffic can obtain potentially sensitive information.
Install update from vendor's website.
Vulnerable software versionsPowerSC: 1.3 - 2.1
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-curl-affect-powersc-2/
http://www.ibm.com/support/pages/node/6823211
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
8) Input validation error
EUVDB-ID: #VU63007
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-27780
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass filters and checks.
The vulnerability exists due to the curl URL parser wrongly accepts percent-encoded URL separators like '/' when decoding the host name part of a URL, making it a different URL using the wrong host name when it is later retrieved. For example, the URL like http://example.com%2F10.0.0.1/, would be allowed by the parser and get transposed into http://example.com/10.0.0.1/.
A remote attacker can bypass various internal filters and checks and force the curl to connect to a wrong web application.
Install update from vendor's website.
Vulnerable software versionsPowerSC: 1.3 - 2.1
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-curl-affect-powersc-2/
http://www.ibm.com/support/pages/node/6823211
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
9) Information disclosure
EUVDB-ID: #VU62641
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-27774
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to curl attempts to follow redirects during authentication process and does not consider different port numbers or protocols to be separate authentication targets. If the web application performs redirection to a different port number of protocol, cURL will allow such redirection and will pass credentials. It could also leak the TLS SRP credentials this way.
By default, curl only allows redirects to HTTP(S) and FTP(S), but can be asked to allow redirects to all protocols curl supports.
MitigationInstall update from vendor's website.
Vulnerable software versionsPowerSC: 1.3 - 2.1
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-curl-affect-powersc-2/
http://www.ibm.com/support/pages/node/6823211
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
10) Improper Authentication
EUVDB-ID: #VU62640
Risk: Medium
CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-22576
CWE-ID:
CWE-287 - Improper Authentication
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error when re-using OAUTH2 connections for SASL-enabled protocols, such as SMPTP(S), IMAP(S), POP3(S) and LDAP(S) (openldap only). libcurl may reuse OAUTH2-authenticated connections without properly making sure that the connection was authenticated with the same credentials as set for this transfer. As a result, a connection that is successfully created and authenticated with a user name + OAUTH2 bearer can subsequently be erroneously reused even for user + [other OAUTH2 bearer], even though that might not even be a valid bearer.
A remote attacker can exploit this vulnerability against applications intended for use in multi-user environments to bypass authentication and gain unauthorized access to victim's accounts.
Install update from vendor's website.
Vulnerable software versionsPowerSC: 1.3 - 2.1
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-multiple-vulnerabilities-in-curl-affect-powersc-2/
http://www.ibm.com/support/pages/node/6823211
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
