CWE-347
Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
CVE-2019-0071 (GCVE-0-2019-0071)
Vulnerability from cvelistv5 – Published: 2019-10-09 19:26 – Updated: 2024-09-16 17:58
VLAI
Title
Junos OS: EX2300, EX3400 Series: Veriexec signature checking not enforced in specific versions of Junos OS
Summary
Veriexec is a kernel-based file integrity subsystem in Junos OS that ensures only authorized binaries are able to be executed. Due to a flaw in specific versions of Junos OS, affecting specific EX Series platforms, the Veriexec subsystem will fail to initialize, in essence disabling file integrity checking. This may allow a locally authenticated user with shell access to install untrusted executable images, and elevate privileges to gain full control of the system. During the installation of an affected version of Junos OS are installed, the following messages will be logged to the console: Initializing Verified Exec: /sbin/veriexec: Undefined symbol "__aeabi_uidiv" /sbin/veriexec: Undefined symbol "__aeabi_uidiv" /sbin/veriexec: Undefined symbol "__aeabi_uidiv" veriexec: /.mount/packages/db/os-kernel-prd-arm-32-20190221.70c2600_builder_stable_11/boot/brcm-hr3.dtb: Authentication error veriexec: /.mount/packages/db/os-kernel-prd-arm-32-20190221.70c2600_builder_stable_11/boot/contents.izo: Authentication error ... This issue affects Juniper Networks Junos OS: 18.1R3-S4 on EX2300, EX2300-C and EX3400; 18.3R1-S3 on EX2300, EX2300-C and EX3400.
Severity
7.8 (High)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA10978 | x_refsource_MISC |
| https://www.juniper.net/documentation/en_US/junos… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
18.1R3-S4
Affected: 18.3R1-S3 |
Date Public
2019-10-09 00:00
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CVE-2019-10136 (GCVE-0-2019-10136)
Vulnerability from cvelistv5 – Published: 2019-07-02 19:29 – Updated: 2024-08-04 22:10
VLAI
Summary
It was found that Spacewalk, all versions through 2.9, did not safely compute client token checksums. An attacker with a valid, but expired, authenticated set of headers could move some digits around, artificially extending the session validity without modifying the checksum.
Severity
4.3 (Medium)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| http://www.securityfocus.com/bid/109029 | vdb-entryx_refsource_BID |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| spacewalkproject | spacewalk |
Affected:
spacewalk all through 2.9
|
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CVE-2019-12649 (GCVE-0-2019-12649)
Vulnerability from cvelistv5 – Published: 2019-09-25 20:05 – Updated: 2024-11-20 17:10
VLAI
Title
Cisco IOS XE Software Digital Signature Verification Bypass Vulnerability
Summary
A vulnerability in the Image Verification feature of Cisco IOS XE Software could allow an authenticated, local attacker to install and boot a malicious software image or execute unsigned binaries on an affected device. The vulnerability exists because, under certain circumstances, an affected device can be configured to not verify the digital signatures of system image files during the boot process. An attacker could exploit this vulnerability by abusing a specific feature that is part of the device boot process. A successful exploit could allow the attacker to install and boot a malicious software image or execute unsigned binaries on the targeted device.
Severity
6.7 (Medium)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco IOS XE Software 3.2.11aSG |
Affected:
unspecified , < n/a
(custom)
|
Date Public
2019-09-25 00:00
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CVE-2019-12662 (GCVE-0-2019-12662)
Vulnerability from cvelistv5 – Published: 2019-09-25 20:16 – Updated: 2024-11-20 17:09
VLAI
Title
Cisco NX-OS and IOS XE Software Virtual Service Image Signature Bypass Vulnerability
Summary
A vulnerability in Cisco NX-OS Software and Cisco IOS XE Software could allow an authenticated, local attacker with valid administrator or privilege level 15 credentials to load a virtual service image and bypass signature verification on an affected device. The vulnerability is due to improper signature verification during the installation of an Open Virtual Appliance (OVA) image. An authenticated, local attacker could exploit this vulnerability and load a malicious, unsigned OVA image on an affected device. A successful exploit could allow an attacker to perform code execution on a crafted software OVA image.
Severity
6.7 (Medium)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco NX-OS Software 6.0(2)A1(1) |
Affected:
unspecified , < n/a
(custom)
|
Date Public
2019-09-25 00:00
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CVE-2019-14859 (GCVE-0-2019-14859)
Vulnerability from cvelistv5 – Published: 2020-01-02 14:15 – Updated: 2024-08-05 00:26
VLAI
Summary
A flaw was found in all python-ecdsa versions before 0.13.3, where it did not correctly verify whether signatures used DER encoding. Without this verification, a malformed signature could be accepted, making the signature malleable. Without proper verification, an attacker could use a malleable signature to create false transactions.
Severity
7.4 (High)
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/warner/python-ecdsa/releases/t… | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| https://pypi.org/project/ecdsa/0.13.3/ | x_refsource_MISC |
| https://github.com/warner/python-ecdsa/issues/114 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | python-ecdsa |
Affected:
all python-ecdsa versions before 0.13.3
|
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CVE-2019-1615 (GCVE-0-2019-1615)
Vulnerability from cvelistv5 – Published: 2019-03-11 22:00 – Updated: 2024-11-20 17:25
VLAI
Title
Cisco NX-OS Software Image Signature Verification Vulnerability
Summary
A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software image on an affected device. The vulnerability is due to improper verification of digital signatures for software images. An attacker could exploit this vulnerability by loading an unsigned software image on an affected device. A successful exploit could allow the attacker to boot a malicious software image. Note: The fix for this vulnerability requires a BIOS upgrade as part of the software upgrade. For additional information, see the Details section of this advisory. Nexus 3000 Series Switches are affected running software versions prior to 7.0(3)I7(5). Nexus 9000 Series Fabric Switches in ACI Mode are affected running software versions prior to 13.2(1l). Nexus 9000 Series Switches in Standalone NX-OS Mode are affected running software versions prior to 7.0(3)I7(5). Nexus 9500 R-Series Line Cards and Fabric Modules are affected running software versions prior to 7.0(3)F3(5).
Severity
6.7 (Medium)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
| http://www.securityfocus.com/bid/107397 | vdb-entryx_refsource_BID |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Nexus 3000 Series Switches |
Affected:
unspecified , < 7.0(3)I7(5)
(custom)
|
|
| Cisco | Nexus 9000 Series Fabric Switches in ACI Mode |
Affected:
unspecified , < 13.2(1l)
(custom)
|
|
| Cisco | Nexus 9000 Series Switches in Standalone NX-OS Mode |
Affected:
unspecified , < 7.0(3)I7(5)
(custom)
|
|
| Cisco | Nexus 9500 R-Series Line Cards and Fabric Modules |
Affected:
unspecified , < 7.0(3)F3(5)
(custom)
|
Date Public
2019-03-06 00:00
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CVE-2019-1728 (GCVE-0-2019-1728)
Vulnerability from cvelistv5 – Published: 2019-05-15 16:45 – Updated: 2024-11-20 17:22
VLAI
Title
Cisco FXOS and NX-OS Software Secure Configuration Bypass Vulnerability
Summary
A vulnerability in the Secure Configuration Validation functionality of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, local attacker to run arbitrary commands at system boot time with the privileges of root. The vulnerability is due to a lack of proper validation of system files when the persistent configuration information is read from the file system. An attacker could exploit this vulnerability by authenticating to the device and overwriting the persistent configuration storage with malicious executable files. An exploit could allow the attacker to run arbitrary commands at system startup and those commands will run as the root user. The attacker must have valid administrative credentials for the device.
Severity
6.7 (Medium)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
| http://www.securityfocus.com/bid/108391 | vdb-entryx_refsource_BID |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco NX-OS Software |
Affected:
unspecified , < 8.3(1)
(custom)
|
Date Public
2019-05-15 00:00
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CVE-2019-1736 (GCVE-0-2019-1736)
Vulnerability from cvelistv5 – Published: 2020-09-23 00:26 – Updated: 2024-11-13 18:05
VLAI
Title
Multiple Cisco UCS-Based Products UEFI Secure Boot Bypass Vulnerability
Summary
A vulnerability in the firmware of the Cisco UCS C-Series Rack Servers could allow an authenticated, physical attacker to bypass Unified Extensible Firmware Interface (UEFI) Secure Boot validation checks and load a compromised software image on an affected device. The vulnerability is due to improper validation of the server firmware upgrade images. An attacker could exploit this vulnerability by installing a server firmware version that would allow the attacker to disable UEFI Secure Boot. A successful exploit could allow the attacker to bypass the signature validation checks that are done by UEFI Secure Boot technology and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco.
Severity
6.2 (Medium)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Identity Services Engine Software |
Affected:
n/a
|
Date Public
2020-02-19 00:00
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CVE-2019-1808 (GCVE-0-2019-1808)
Vulnerability from cvelistv5 – Published: 2019-05-15 22:15 – Updated: 2024-11-20 17:19
VLAI
Title
Cisco MDS 9700 Series Multilayer Directors and Nexus 7000/7700 Series Switches Software Patch Signature Verification Vulnerability
Summary
A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by loading an unsigned software patch on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.
Severity
6.7 (Medium)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
| http://www.securityfocus.com/bid/108367 | vdb-entryx_refsource_BID |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco NX-OS Software |
Affected:
unspecified , < 8.3(1)
(custom)
|
Date Public
2019-05-15 00:00
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CVE-2019-1809 (GCVE-0-2019-1809)
Vulnerability from cvelistv5 – Published: 2019-05-15 22:15 – Updated: 2024-11-20 17:19
VLAI
Title
Cisco NX-OS Software Patch Signature Verification Bypass Vulnerability
Summary
A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.
Severity
6.4 (Medium)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
| http://www.securityfocus.com/bid/108375 | vdb-entryx_refsource_BID |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco NX-OS Software |
Affected:
unspecified , < 8.3(1)
(custom)
|
Date Public
2019-05-15 00:00
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No mitigation information available for this CWE.
CAPEC-463: Padding Oracle Crypto Attack
An adversary is able to efficiently decrypt data without knowing the decryption key if a target system leaks data on whether or not a padding error happened while decrypting the ciphertext. A target system that leaks this type of information becomes the padding oracle and an adversary is able to make use of that oracle to efficiently decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). In addition to performing decryption, an adversary is also able to produce valid ciphertexts (i.e., perform encryption) by using the padding oracle, all without knowing the encryption key.
CAPEC-475: Signature Spoofing by Improper Validation
An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.